FHIR

FHIR 4.0

Introduction

Fast Healthcare Interoperability Resources, or FHIR, is a standard way of defining an API for healthcare resources. More information can be found at the FHIR website.


The Emedical FHIR API is based on DSTU 2, or version 1.0.2, of the FHIR standard. The Emedical FHIR API uses the Data Access Framework (DAF) profile that was originally developed for Meaningful Use 2 by ONC..


Security

Like many RESTful APIs, the Emedical FHIR API uses OAuth 2 for security. This means that when making calls to any resource with the Emedical FHIR API, you must pass a Bearer token. This token is passed in the Authorization Header. 

Authorization: Bearer RL0TZ9vZM3cpW7Ze1_D_wPBiWJ9CJJUbsK5_iNJ7sX9PpVgi6tNwi6h4It9Xav1G5pP...

To obtain a Bearer token, you must call an Authorization Server. The authorization server typically exposes two endpoints:

As per the FHIR specification, the Emedical FHIR API supports JSON. we limit our examples to JSON.

Overview

Step 1: Search for a patient

Now that we have the Bearer token, we can call the API. We will use it to search for a patient called Allison. 

GET https://stage.emedpractice.com/emedapi/fhir/Patient?given=Alice

This will return a collection of patient references. FHIR detail: FHIR returns this collection as a Bundle. When writing your client you will need to be aware of this detail, but we will gloss over that for now. 

{
"resourceType": "Bundle",
"TotalElement": "4",
"entry":[
    {
            "resource":{"resourceType": "Patient", "id": "7OddVzA6kuw%3d", "language": "", "text":{"status": "generated"}
    },
    {
            "resource":{"resourceType": "Patient", "id": "BpGC1utB9Y8%3d", "language": "", "text":{"status": "generated"}
    },
    {
            "resource":{"resourceType": "Patient", "id": "lypW7ti%2bldg%3d", "language": "", "text":{"status": "generated"}
    },
    {
            "resource":{"resourceType": "Patient", "id": "RGqZr5e2FLU%3d", "language": "", "text":{"status": "generated"}
    }
]}

Step 2: Retrieve a patient

Let's pick the patient with ID %2fBiFliYYDYY%3d.

To retrieve the patient detail, issue the following request: 

GET https://stage.emedpractice.com/emedapi/fhir/Patient?pid=%2fBiFliYYDYY%3d
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Step 1: Signup for a Developer account

If your have Username, Password, ClientID you will get the accesstoken.

Step 2: Use the above information to obtain a bearer token

The important pieces of information here are

I).https://stage.emedpractice.com/emedapi/EMedTokenIssuer

Request Body grant_type=password&client_id=ClientID&username=user1&password=Password12

II). You will get Access Token (bearer token).
III). Call the Patient Search List Service

https://stage.emedpractice.com/emedapi/fhir/patient?given=Alice

Authorization : bearer RL0TZ9vZM3dcNFNOEbYMIaJW2pxs59Bk6McOioKitUn0jcPLfUccPrLi3Zwrm3K1u3C

IV). You will receive the All the patients (Json Response) with the given name "Alice".

Step 3: Retrieve a patient

Let's pick the patient with ID %2fBiFliYYDYY%3d

To retrieve the patient detail, issue the following request 

GET https://stage.emedpractice.com/emedapi/fhir/patient?_id=%2fBiFliYYDYY%3d
Authorization: Bearer RL0TZ9vZM3dcNFNOEbYMIaJW2pxs59Bk6McOioKi

The Bearer token is the token you retrieved in the previous step. It goes into the Authorization Header.

This will return the patient.

Authentication and Authorization

Authentication and Authorization

Searching for a patient

GET https://stage.emedpractice.com/emedapi/fhir/Patient?given=Alice
GET https://stage.emedpractice.com/emedapi/fhir/Patient?given=Alice&family=Newman
GET https://stage.emedpractice.com/emedapi/fhir/Patient?given=Alice&family=Newman&gender=F
The following parameters can be specified as part of the search query:
Name Required Type Description
name No string A portion of either the family or given name of the patient.
_id No string The logical ID of the patient.
family Yes string A portion of the family (last) name of the patient.
given Yes string A portion of the given (first) name of the patient.
gender Yes string Patient's gender. M-Male, F-female, O-Other, U-Unknown
birthdate Yes date Patient's date of birth.
identifier Yes token Patient's identifier. For example, MRN. 
{
"resourceType": "Bundle",
"TotalElement": "4",
"entry":[
    {
                    "resource":{"resourceType": "Patient", "id": "7OddVzA6kuw%3d", "language": "", "text":{"status": "generated"}
    },
    {
                    "resource":{"resourceType": "Patient", "id": "BpGC1utB9Y8%3d", "language": "", "text":{"status": "generated"}
    },
    {
                    "resource":{"resourceType": "Patient", "id": "lypW7ti%2bldg%3d", "language": "", "text":{"status": "generated"}
    },
    {
                    "resource":{"resourceType": "Patient", "id": "RGqZr5e2FLU%3d", "language": "", "text":{"status": "generated"}
    }
]}

Searching for a patient ID

Very often, you want to find a patient ID so that you can query for additional information. The search function is described in the previous section.

If your response returns one or more patients, the response contains the patient ID (or patient IDs).

{ "resourceType": "Bundle", "type": "searchset", "entry":[ { "resource":{"resourceType": "Patient", "id":"7OddVzA6kuw%3d", "language": "", "text":{"status": "generated"} } ]}

Retrieving a patient

The patient's logical ID (used to retrieve the patient) is passed as part of the URL. The logical ID is found as the result of a search. 

GET https://stage.emedpractice.com/emedapi/fhir/Patient?given=Alice&family=Newman
Name Type Cardinality Description
identifier Identifier 0..* Patient's identifier. Patients are usually assigned a specific numerical identifier that is unique within the system.
active boolean 0..1 Is the patient's record active? The default value is true. Need to be able to mark a patient record as not to be used because it was created in error. If a record is inactive, and linked to an active record, then future patient/record updates should occur on the other patient.
name HumanName 0..* Name associated with the patient.
telecom ContactPoint 0..* Patient contact communication detail. This indicates the value in any kind of telecom details field for the patient. If capturing a phone, fax, or similar contact point, the value is a properly formatted telephone number according to ITU-T E.123. However, this is frequently not possible due to legacy data and/or clerical practices when recording contact details. For this reason, phone, fax, page, and email addresses are not handled as formal URLs.
gender code 0..1 Patient's gender. Returns Male, Female, Other, or Unknown. For more information on this value set, see Administrative Gender ValueSet.
birthDate date 0..1 Patient's date of birth. This indicates a specific calendar date or partial date (either a year or a month and year combination). Time zone is not included. Fuzzy (approximate) dates are not valid.
deceasedBoolean boolean 0..1 Is the patient deceased? If a patient is deceased, it influences the clinical process and human communication. If this value is blank, most systems interpret the missing information as an indication that the patient is alive.
address Address 0..* Patient's postal address. Postal addresses are often used to record a location that can be visited to find a patient or person.
maritalStatus CodeableConcept 0..1 Patient marital (civil) status. For more information on this value set, see Marital Status Codes.
multipleBirthBoolean boolean 0..1 Was the patient part of a multiple birth?
contact 0..* Patient's contact party. For example, Guardian, Partner, or Friend.
contact.relationship CodeableConcept 0..* Patient contact's relationship with the patient.
contact.name HumanName 0..1 Patient contact's name.
contact.telecom ContactPoint 0..* Patient contact's detailed information.
contact.address Address 0..1 Patient contact's address.
communication.language CodeableConcept 0..* The language used to communicate with the patient about his or her health.
careProvider Reference Practitioner 0..* Patient's nominated primary care provider.
us-core-race CodeableConcept 0..1 Patient's race (category of humans sharing history, origin, or nationality).
us-core-ethnicitye CodeableConcept 0..1 Patient's ethnicity (category of humans sharing heritage).
us-core-religion CodeableConcept 0..1 Patient's professed religious affiliation.
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Smoking status

Retrieving a patient's observations

The patient's logical ID is passed as part of the URL. The logical ID is returned using the search function. 

GET https://stage.emedpractice.com/emedapi/Fhir/SmokingStatus?pid=%2fBiFliYYDYY%3d
Name Required? Type Description
pid yes URL Patient's logical ID. This is retrieved using the search function.

Smoking status is returned in a DAF observation. The actual smoking status is returned in valueCodeableConcept.

Name Type Cardinality Description
identifier 0..* Observation's unique ID. This applies to the instance observation.
status code 1..1 Observation's status. Values include Registered, Preliminary, Final, or Amended. For more information on this value set, see observation-status.
category CodeableConcept 0..1 Observation's type of classification. For more information on this value set, see observation-category.
code CodeableConcept 1..1 Observation's type or code. For more information on this value set, see observation-codes.
subject Reference(Patient, Group, Device, Location) 0..1 Observation's subject. The patient's (or group of patients) location, or the device whose characteristics (direct or indirect) are described by the observation and into whose record the observation is placed.
encounter Reference(Encounter) 0..1 Observation's encounter. The healthcare event (a patient and healthcare provider interaction) during which the observation is made. For some observations it may be important to know the link between an observation and a particular encounter.
effectiveDateTime dateTime 0..1 Clinically relevant time/time-period for observation.
effectivePeriod Period 0..1 Clinically relevant time/time-period for the observation. The time or time-period the observed value is asserted as being true. For biological subjects (human patients) this is usually called the "physiologically relevant time." This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.
issued Hl7.Fhir.Model.Instant 0..1 Date/time the observation was made available. The date and time is typically after the results have been reviewed and verified.
performer Reference(Practitioner, Organization, Patient, RelatedPerson) 0..* Individual responsible for the observation.
valueCodeableConcept CodeableConcept 0..1 The smoking status. Need to track the status of individual results. Some results are finalized before the whole report is finalized. For more information on this value set, see DAF Smoking Status Value Set.
comments string 0..1 Comments about the result.

Sample Output 

{"UrlElement":{"Value":"http://hl7.org/fhir/us/core/ValueSet/us-core-observation-ccdasmokingstatus"},"NameElement":{"Value":"Smoking Status"},"StatusElement":{"Value":1},"ExperimentalElement":{"Value":true},"DateElement":{"Value":"2017-04-30"},"Compose":{"Include":[{"SystemElement":{"Value":"http://snomed.info/sct"},"Concept":[{"CodeElement":{"Value":"266919005"},"DisplayElement":{"Value":"Never smoker"}}]}]},"Text":{"StatusElement":{"Value":0}},"resourceType":"SmokingStatus"}

Expected Exceptions

I). Invalid Patient ID (Patient ID is the Mandatory parameter)
II).If the patient does not have smoking status, empty bundle json will return.

Detailed information about conditions, problems, or diagnoses

Retrieving a patient's conditions

The patient's logical ID used to retrieve the patient is passed as part of the URL. The logical ID is found as the result of a search. 

GET https://stage.emedpractice.com/emedapi/Fhir/Condition?pid=%2fBiFliYYDYY%3d
GET https://stage.emedpractice.com/emedapi/Fhir/Condition?pid=%2fBiFliYYDYY%3d=&name=Severe
GET https://stage.emedpractice.com/emedapi/Fhir/Condition?pid=%2fBiFliYYDYY%3d=&fromdate<=2011-12-31&todate=>2012-05-31
Name Required? Type Description
pid yes URL The patient's logical ID. This is retrieved using the search function.
date no string A string representing a date to include in the search. See below for more information.

A DAF condition (problem) is returned.

Name Type Cardinality Description
identifier Identifier 0..* External ID for the condition. The ID is defined by business processes and/or used to refer to it when a direct URL reference to the resource itself is not appropriate. For example, in CDA documents or in written or printed documentation. This may include IMO, ICD9/10, or Medcin codes.
patient Reference(Patient) 1..1 Patient name. This indicates the patient who the condition record is associated with. This is used for querying and retrieving patient demographic information.
encounter Reference(Encounter) 0..1 Encounter during which the condition was first asserted.
asserter Reference(Practitioner, Patient) 0..1 Individual who asserts the condition. This is a provider reference.
dateRecorded date 0..1 Date when the condition was first recorded. This is not the date on which the condition was last updated.
code CodeableConcept 1..1 ID of the condition, problem, or diagnosis. The value set includes content from SNOMED. For more information on this value set, see condition-code.
category CodeableConcept 0..1 Condition category. Valid entries include: Complaint, Symptom, Finding, and Diagnosis. For more information on this value set, see condition-category.
clinicalStatus code 0..1 Condition clinical status. Valid entries include: Active, Relapse, Remission, and Resolved. For more information on this value set, see condition-clinical.
verificationStatus code 1..1 Condition verification status. Valid entries include: Provisional, Differential, Confirmed, Refuted, Entered-in-error, and Unknown. For more information on this value set, see condition-ver-status.
severity CodeableConcept 0..1 Subjective severity of condition. Valid entries include the following SNOMED codes: 399166001 Fatal, 24484000 Severe, 6736007 Moderate, and 255604002 Mild. For more information on this value set, see condition-severity.
onsetDateTime dateTime 0..1 Estimated or actual date, date-time, or age when the condition statement was documented. The Date Recorded indicates the date when this particular condition record was created in the EHR, not the date of the most recent update. Onset date is pulled from Problem.OnsetFuzzyWhen.
onsetQuantity Quantity 0..1 Estimated or actual date, date-time, or age.
onsetPeriod Period 0..1 Estimated or actual date, date-time, or age.
onsetRange Hl7.Fhir.Model.Range 0..1 Estimated or actual date, date-time, or age.
onsetString String 0..1 Estimated or actual date, date-time, or age.
abatementDateTime dateTime 0..1 If/when in resolution/remission.
abatementQuantity Quantity 0..1 If/when in resolution/remission.
abatementBoolean Boolean 0..1 If/when in resolution/remission.
abatementPeriod Period 0..1 If/when in resolution/remission.
abatementRange Hl7.Fhir.Model.Range 0..1 If/when in resolution/remission.
abatementString String 0..1 If/when in resolution/remission.
stage 0..1 Stage/grade, usually assessed formally.
stage.summary CodeableConcept 0..1 Simple summary (disease specific). For more information on this value set, see condition-stage.
stage.assessment Reference(ClinicalImpression, DiagnosticReport, Observation) 0..* Formal record of assessment.
evidence 0..* Supporting evidence.
evidence.code CodeableConcept 0..1 Manifestation/symptom. For more information on this value set, see manifestation-or-symptom.
evidence.detail Reference(Resource) 0..* Supporting information found elsewhere.
bodySite CodeableConcept 0..* Anatomical location, if relevant. For more information on this value set, see body-site.
notes string 0..1 Additional information about the condition.

Searching by Date

Dates are passed as query paramters on the URL. Since the URL parameters cannot handle comparators (for example, >, <=) these are passed in as part of the date.

fromdate<=2016-01-01
todate=>2016-12-31

To search for a date range, pass in the date twice.

e.g. fromdate<=2010-01-01&todate=>2010-12-31

This search would include every day in the year 2010.

Sample Output 

{"Patient":{"ReferenceElement":{"Value":"Patient"}},"DateRecordedElement":{"Value":"2011-10-05"},"Code":{"Coding":[{"SystemElement":{"Value":"http://snomed.info/sct"},"CodeElement":{"Value":"59621000"},"DisplayElement":{"Value":"Essential hypertension (Disorder)"}}],"TextElement":{"Value":"Essential hypertension (Disorder)"}},"Category":{"Coding":[{"SystemElement":{"Value":"http://snomed.info/sct"},"CodeElement":{"Value":"59621000"},"DisplayElement":{"Value":"Essential hypertension (Disorder)"}},{"SystemElement":{"Value":"http://snomed.info/sct"},"CodeElement":{"Value":"439401001"},"DisplayElement":{"Value":"Diagnosis"}}]},"VerificationStatusElement":{"Value":2},"Severity":{"Coding":[{"SystemElement":{"Value":"http://snomed.info/sct"},"CodeElement":{"Value":"24484000"},"DisplayElement":{"Value":"Severe"}}]},"Text":{"StatusElement":{"Value":0},"Div":"Essential hypertension (Disorder)"},"resourceType":"Condition"}

Expected Exceptions

I). Invalid Patient ID (Patient ID is the Mandatory parameter)
II).If the patient does not have Condition (Problems), empty bundle json will return.

Record of medication being taken by a patient

Retrieving a patient's medication statements

The logical ID (of the patient to retrieve) is passed as part of the URL. The logical ID is found as the result of a search. 

GET https://stage.emedpractice.com/emedapi/Fhir/Medication?pid=%2fBiFliYYDYY%3d
GET https://stage.emedpractice.com/emedapi/Fhir/Medication?pid=%2fBiFliYYDYY%3d&fromdate<=2017-05-01&todate=>2017-05-01
Name Required? Type Description
pid yes URL Patient's logical ID. This is retrieved using the search function.
date no string A string representing a date to include in the search. See below for more information.

A DAF MedicationStatement is retuned

Name Type Cardinality Description
identifier 0..* External identifier. FHIR will generate its own internal identifiers (probably URLs) which do not need to be explicitly managed by the resource. The identifier is one that would be used by another non-FHIR system. For example, an automated medication pump would provide a record each time it operated; an administration while the patient was off the ward might be made with a different system and entered after the event. This is particularly important if these records have to be updated.
patient Reference(Patient) 1..1 Patient who is or was taking the medication. Defines constraints and extensions on the patient resource for use in querying and retrieving patient demographic information.
informationSource Reference(Patient, Practitioner, RelatedPerson) 0..1 The person who provided the information about the taking of this medication.
dateAsserted dateTime 0..1 Date and time when the statement was asserted.
status code 1..1 Valid entries include: Active, Completed, Entered-in-error, and Intended. For more information on this value set, see medication-statement-status.
wasNotTaken boolean 0..1 Was the medication not taken? True if medication is/was not being taken.
reasonNotTaken CodeableConcept 0..* Instances are not expected or even encouraged to draw from the specified value set. The value set merely provides examples of the types of concepts intended to be included. A code indicating why the medication was not taken. A set of codes indicating the reason why the MedicationAdministration is negated. For example codes, see Reason Medication Not Given Codes. This value set has an inline code system http://hl7.org/fhir/reason-medication-not-given, which defines the following codes: Code "a" - Display "None" - No reason known, Code "b" - Display "Away" - The patient was not available when the dose was scheduled, Code "c" - Display "Asleep" - The patient was asleep when the dose was scheduled, and Code "d" - Display "Vomit" - The patient was given the medication and immediately vomited it back.
reasonForUseCodeableConcept CodeableConcept 0..1
reasonForUseReference Reference(Condition) 0..1
effectiveDateTime dateTime 0..1 Date and time over which the medication was consumed.
effectivePeriod Period 0..1 The interval of time during which it is being asserted that the patient was taking the medication (or was not taking, when the wasNotGiven element is true). If the medication is still being taken at the time the statement is recorded, the "end" date will be omitted.
note string 0..1 Further information about the statement.
supportingInformation Reference(Resource) 0..* Additional supporting information.
medicationCodeableConcept CodeableConcept 1..1 The medication that was taken. Defines constraints and extensions on the Medication resource for use in querying and retrieving patient's medication information.
medicationReference Reference(Medication) 1..1 The medication that was taken.
dosage 0..* Indicates how the medication is/was used by the patient.
dosage.text string 0..1 Reported dosage information.
dosage.timing Hl7.Fhir.Model.Timing 0..1 When/how often was medication taken. The timing schedule for giving the medication to the patient. The Schedule data type allows many different expressions. For example, "Every 8 hours," "Three times a day," "1/2 an hour before breakfast for 10 days from 23-Dec 2011," or "15 Oct 2013, 17 Oct 2013 and 1 Nov 2013".
dosage.asNeededBoolean Boolean 0..1 Take "as needed" (for x).
dosage.asNeededCodeableConcept CodeableConcept 0..1 Take "as needed" (for x).
dosage.siteCodeableConcept CodeableConcept 0..1 Where (on body) medication is/was administered. Instances are encouraged to draw from the specified codes for interoperability purposes but are not required to do so to be considered conformant. A coded specification of the anatomic site where the medication first enters the body. This identifies the body site at which the substance was administered. The codes SHOULD be taken from Vaccine Administered Body Site. All codes from system http://snomed.info/sct. The value set includes codes from the following code systems (actual value set has > 1000 codes included): 91723000 - Anatomical structure (body structure), 280115004 - Acquired body structure (body structure), 258331007 - Anatomical site notations for tumor staging (body structure), 118956008 - Altered from its original anatomical structure (morphologic abnormality), or 91722005 - Entire physical anatomical entity (body structure).
dosage.route CodeableConcept 0..1 Route by which the medication entered the body. Instances are encouraged to draw from the specified codes for interoperability purposes but are not required to do so to be considered conformant. Route of Administration value set is based upon FDA Drug Registration and Listing Database (FDA Orange Book) which are used in FDA structured product and labelling (SPL). This value set includes codes as defined in http://ncimeta.nci.nih.gov.
dosage.method CodeableConcept 0..1 Technique used to administer the medication.
dosage.quantityQuantity Quantity 0..1 Amount administered in one dose.
dosage.quantityRange Hl7.Fhir.Model.Range 0..1 Amount administered in one dose.
dosage.rateRatio Hl7.Fhir.Model.Ratio 0..1 Identifies the speed with which the medication was or will be introduced into the patient. Typically the rate for an infusion e.g. 100 ml per 1 hour or 100 ml/hr. May also be expressed as a rate per unit of time e.g. 500 ml per 2 hours. Currently we do not specify a default of "˜1" in the denominator, but this is being discussed. Other examples: 200 mcg/min or 200 mcg/1 minute; 1 liter/8 hours.
dosage.rateRange Hl7.Fhir.Model.Range 0..1 Dose quantity per unit of time.
dosage.maxDosePerPeriod Hl7.Fhir.Model.Ratio 0..1 The maximum total quantity of a therapeutic substance that may be administered to a subject over the period of time. For example, 1000mg in 24 hours.

Searching by Date

Dates are passed in as Query paramters on the URL. Since the URL parameters cannot handle comparators (e.g. >, <=) these are passed in as pat of the date

fromdate<=2016-01-01
todate=>2016-12-31

To search for a date range, you pass in the date twice

e.g. fromdate<=2010-01-01&todate=>2010-12-31 This search would include every day in the year 2010

Sample Output 

{"Code":{"Coding":[{"SystemElement":{"Value":"http://purl.bioontology.org/ontology/RXNORM/309090"},"CodeElement":{"Value":"309090"},"DisplayElement":{"Value":"Ceftriaxone Sodium 100 GM Injection Solution Reconstituted"}}],"TextElement":{"Value":"Ceftriaxone Sodium 100 GM Injection Solution Reconstituted"}},"IsBrandElement":{"Value":true},"Product":{"Form":{"Coding":[{"SystemElement":{"Value":"http://purl.bioontology.org/ontology/RXNORM/309090"},"CodeElement":{"Value":"309090"},"DisplayElement":{"Value":"Ceftriaxone Sodium 100 GM Injection Solution Reconstituted"}}]}},"Text":{"StatusElement":{"Value":0}},"resourceType":"Medication"}

Expected Exceptions

I). Invalid Patient ID (Patient ID is the Mandatory parameter)
II).If the patient does not have Medications, empty bundle json will return.

Allergy or intolerance (generally: risk of adverse reaction to a substance)

Retrieving a patient's allergy intolerances

The logical ID (of the patient to retrieve) is passed as part of the URL. The logical ID is found as the result of a search. 

GET https://stage.emedpractice.com/emedapi/Fhir/AllergyIntolerance?pid=%2fBiFliYYDYY%3d
GET https://stage.emedpractice.com/emedapi/Fhir/AllergyIntolerance?pid=%2fBiFliYYDYY%3d&fromdate<=2017-05-01&todate=>2017-05-01
Name Required? Type Description
pid yes URL The logical ID of the patient. This is retrieved using the search function.
date no string A string representing a date to include in the search. See below for more information.

A DAF AllergyIntolerance is returned.

Name Type Cardinality Description
identifier 0..* Identifier associated with the allergy/intolerance concern that are defined by the business processes and/or used to refer to it when a direct URL reference to the resource is not appropriate. For example, in CDA documents or in written/printed documentation.
onset dateTime 0..1 Date and/or time of the onset of the allergy or intolerance.
recordedDate dateTime 0..1 Date when the sensitivity was recorded.
recorder Reference(Practitioner, Patient) 0..1 Individual who recorded the allergy and takes responsibility for its content. Options include either DAF-Practitioner profile or DAF-Patient profile.
patient Reference(Patient) 1..1 Defines constraints and extensions on the patient resource for use in querying and retrieving patient demographic information.
reporter Reference(Patient, RelatedPerson, Practitioner) 0..1 Source of the information about the allergy that is recorded.
substance CodeableConcept 1..1 Identification of a substance or class of substances that is considered to be responsible for the adverse reaction risk. AllergyIntolerance.substance has an extensible binding to a value set consisting of: NDF-RT (codes for drug class allergies), RXNORM (codes limited to term types- TTY- such as BN or Brand Name, IN or Ingredient, MIN or multiple ingredient, and PIN or precise ingredient for drug ingredient allergies) or SNOMED CT (used when no other code from the other code systems is appropriate, such as No Known Allergies, No Known Food Allergies, No Known Drug Allergies, or No Known Environmental Allergies).
status code 0..1 Assertion about certainty associated with the propensity or potential risk of a reaction to the identified substance. The codes shall be taken from the AllergyIntoleranceStatus value set which includes: Active, Unconfirmed, Confirmed, Inactive, Resolved, Refuted, and Entered in Error. Decision support would typically raise alerts for Unconfirmed, Confirmed, and Resolved and ignore a Refuted reaction. In particular, Refuted may be useful for reconciliation of the Adverse Reaction List. Conformance is required and as such, some implementations may choose to make this field mandatory.
criticality code 0..1 Estimate of the potential clinical harm or seriousness of the reaction to the identified substance. The codes shall be taken from the AllergyIntoleranceCriticality value set with required conformance and include: CRITL-Low, CRITH-High, and CRITU-Unable to determine. For more information on this value set, see: http://hl7.org/fhir/ValueSet/allergy-intolerance-criticality.
type code 0..1 Identification of the underlying physiological mechanism for a reaction risk. This value set includes two types: Allergy or Intolerance. For more information on this value set, see: http://hl7.org/fhir/ValueSet/allergy-intolerance-type.
category code 0..1 Category of the allergy. Options include: Food, Medication, Environment, and Other. For more information on this value set, see: http://hl7.org/fhir/ValueSet/allergy-intolerance-category.
lastOccurence dateTime 0..1 Date and time of the last known occurrence of the reaction.
note Annotation 0..1 Additional text not captured in other fields.
reaction.substance CodeableConcept 0..1 Identification of the specific substance considered to be responsible for the adverse reaction event. Note: The substance for a specific reaction may be different from the substance identified as the cause of the risk, but must be consistent with it. For instance, it may be a more specific substance such as a brand medication or a composite substance that includes the identified substance. It must be clinically safe to only process the AllergyIntolerance.substance and ignore the AllergyIntolerance.event.substance. For more information on this value set, see: http://hl7.org/fhir/ValueSet/substance-code.
reaction.manifestation CodeableConcept 1..* Clinical symptoms and signs associated with the event.
reaction.description string 0..1 Description of the event as a whole.
reaction.onset dateTime 0..1 Date and time when manifestations showed.
reaction.severity code 0..1 Severity of the reaction or of the event as a whole. Options include: Mild, Moderate, or Severe. For more information on this value set, see: http://hl7.org/fhir/ValueSet/reaction-event-severity.
reaction.exposureRoute CodeableConcept 0..1 How the subject was exposed to the substance. For more information on this value set, see: http://hl7.org/fhir/ValueSet/route-codes.
reaction.note Annotation 0..1 Text about the event not captured in other fields.

Searching by date

Dates are passed in as query parameters in the URL. Since the URL parameters cannot handle comparators (for example, >, <=) these are passed as part of the date.

fromdate<=2016-01-01
todate=>2016-12-31

To search for a date range, pass the date twice.

For example: fromdate<=2010-01-01&todate=>2010-12-31 This search would include every day in the year 2010.

Sample Output 

{"RecordedDateElement":{"Value":"1980-05-10"},"Recorder":{"ReferenceElement":{"Value":"Patient"}},"StatusElement":{"Value":0},"CategoryElement":{"Value":1},"LastOccurenceElement":{"Value":"1980-05-10"},"Reaction":[{"Substance":{"Coding":[{"SystemElement":{"Value":"http://www.nlm.nih.gov/research/umls/rxnorm"},"CodeElement":{"Value":"0007100000"},"DisplayElement":{"Value":"Ampicillin "}}]}}],"resourceType":"AllergyIntolerance"}

Expected Exceptions

I). Invalid Patient ID (Patient ID is the Mandatory parameter)
II).If the patient does not have Medication Allergies, empty bundle json will return.

Diagnostic Order:

Diagnostic Order: a combination of requested information, atomic results, images, interpretation, and formatted reports.

Retrieving a patient's laboratory result diagnostic reports

The logical ID of the patient to retrieve is passed as part of the URL. The logical ID is found as the result of a search. 

GET https://stage.emedpractice.com/emedapi/Fhir/DiagnosticOrder?pid=%2fBiFliYYDYY%3d
GET https://stage.emedpractice.com/emedapi/Fhir/DiagnosticOrder?pid=%2fBiFliYYDYY%3d&fromdate<=2017-05-01&todate=>2017-06-01
Name Required? Type Description
pid yes URL The logical ID of the patient. This is retrieved using the search function.
date no string A string representing a date to include in the search. See below for more information.

A DAF DiagnosticReport is returned.

Name Type Cardinality Description
identifier 0..* Local ID assigned to the report by the order filler, usually by the information system of the diagnostic service provider. You must know what identifier to use when making queries about this report from the source laboratory and for linking to the report outside FHIR context. Alternate name: ReportID.
status code 1..1 Status of the diagnostic report as a whole. Diagnostic services routinely issue provisional/incomplete reports, and sometimes withdraw previously released reports. This is labeled as "Is Modifier" because applications need to take appropriate action if a report is withdrawn. The codes shall be taken from the DiagnosticReportStatus value set, which includes the following statuses: Registered, Partial, Final, Corrected, Appended, Cancelled, and Entered-in-Error. For more information on this value set, see: http://hl7.org/fhir/ValueSet/diagnostic-report-status.
category CodeableConcept 0..1 Code that classifies the clinical discipline, department, or diagnostic service that created the report. For example, cardiology, biochemistry, hematology, or MRI. This is used for searching, sorting, and displaying purposes. The level of granularity is defined by the category concepts in the DiagnosticServiceSectionCodes value set. More filtering is performed using the metadata and/or terminology hierarchy in DiagnosticReport.code. Alternate names: Department, Sub-department, service, discipline. Example codes include: AU- Audiology, CH- Chemistry, MB- Microbiology, and HM- Hematology. For more information on this value set, see: http://hl7.org/fhir/ValueSet/diagnostic-service-sections.
code CodeableConcept 1..1 Test, panel, or battery that was ordered. The typical patterns for codes are: 1) a LOINC code either as a translation from a "local" code or as a primary code, 2) a local code only if no suitable LOINC exists, or 3) both the local and the LOINC translation. Systems shall be capable of sending the local code if one exists. The codes shall be taken from US Laboratory Observation Profile Observation Name Codes. Other codes may be used where these codes are not suitable. This value set has more than 1000 codes. For more information on this value set, see: http://hl7.org/fhir/ValueSet/report-codes.
subject Reference(Patient, Group, Device, Location) 1..1 Subject of the report. Usually this is a patient. However, diagnostic services also perform analyses on specimens collected from a variety of other sources.
encounter Reference(Encounter) 0..1 Link to the healthcare event (encounter) when the order was made.
effectiveDateTime dateTime 1..1 Specimen Collection Datetime which is the physically relevant dateTime for laboratory tests. If the diagnostic procedure was performed on the patient, this is the time it was performed. If there are specimens, the diagnostically relevant time can be derived from the specimen collection times, but the specimen information is not always available, and the exact relationship between the specimens and the diagnostically relevant time is not always automatic.
effectivePeriod Period 1..1 Specimen Collection Period which is the physically relevant dateTime for laboratory tests. If the diagnostic procedure was performed on the patient, this is the time it was performed. If there are specimens, the diagnostically relevant time can be derived from the specimen collection times, but the specimen information is not always available, and the exact relationship between the specimens and the diagnostically relevant time is not always automatic. If the start element is missing, the start of the period is not known. If the end element is missing, it means that the period is ongoing, or the start may be in the past, and the end date in the future, which means that period is expected/planned to end at the specified time.
issued Hl7.Fhir.Model.Instant 1..1 Date and time that this version of the report was released from the source diagnostic service. Clinicians must be able to check the date that the report was released. This may be different from the update time of the resource itself, because that is the status of the record (potentially a secondary copy), not the actual release time of the report. Alternate names: Date Created, Date published, Date Issued.
performer Reference(Practitioner, Organization) 1..1 Diagnostic service that is responsible for issuing the report. This is helpful to know who to contact if there are queries about the results. You may need to track the source of reports for secondary data analysis. This is not necessarily the source of the atomic data items. It is the entity that takes responsibility for the clinical report. Alternate names: Laboratory, Service, Practitioner, Department, Company.
request Reference(DiagnosticOrder, ProcedureRequest, ReferralRequest) 1..* Details concerning a test or procedure requested. You need to be able to track completion of requests based on reports issued and also to report what diagnostic tests were requested (not always the same as what is delivered). You need to be able to track completion of requests based on reports issued and also to report what diagnostic tests were requested (not always the same as what is delivered).
specimen Reference(Specimen) 0..* Details about the specimens on which this diagnostic report is based. If the specimen is sufficiently specified with a code in the test result name, then this additional data may be redundant. If there are multiple specimens, these may be represented per observation or group.
result Reference(Observation) 0..* Observations that are part of this diagnostic report. Observations can be simple name/value pairs (for example, "atomic" results), or they can be grouping observations that include references to other members of the group (such as "panels"). You need to support individual results, or report groups of results, where the result grouping is arbitrary, but meaningful. This structure is recursive in that observations can contain observations. Alternate names: Data, Atomic Value, Result, Atomic result, Data, Test, Analyte, Battery, or Organizer.
imagingStudy Reference(ImagingStudy) 0..* One or more links to full details of any imaging performed during the diagnostic investigation. Typically, this is imaging performed by DICOM enabled modalities, but this is not required. A fully enabled PACS viewer can use this information to provide views of the source images. ImagingStudy and ImageObjectStudy and the image element are somewhat overlapping - typically, the list of image references in the image element will also be found in one of the imaging study resources. However each caters to different types of displays for different types of purposes. Neither, either, or both may be provided.
image 0..* List of key images associated with this report. The images are generally created during the diagnostic process, and may be directly of the patient, or of treated specimens (for example, slides of interest).
image.comment string 0..1 Comment about the image. Typically this is used to provide an explanation for why the image is included, or to draw the viewer's attention to important features. The provider of the report should make a comment about each image included in the report. The comment should be displayed with the image. It would be common for the report to include additional discussion of the image contents in other sections such as the conclusion.
conclusion string 0..1 Concise and clinically contextualized narrative interpretation of the diagnostic report. You need to be able to provide a conclusion that is not lost among the basic result data. Typically, a report is either [all data, no narrative (e.g. Core lab)] or [a mix of data with some concluding narrative (e.g. Structured Pathology Report, Bone Density)], or [all narrative (e.g. typical imaging report, histopathology)]. In all of these cases, the narrative goes in "text".
codedDiagnosis CodeableConcept 0..* Codes for the conclusion which are SNOMED CT findings codes provided as adjunct diagnosis to the report. The codes should be taken from SNOMED CT Clinical Findings. Included are codes from http://snomed.info/sct where concept is-a 404684003. For more information on this value set, see: http://hl7.org/fhir/ValueSet/clinical-findings.
presentedForm Hl7.Fhir.Model.Attachment 0..* Rich text representation of the entire result as issued by the diagnostic service. Multiple formats are allowed but they shall be semantically equivalent. This gives the laboratory the ability to provide its own fully formatted report for clinical fidelity. Note: "application/pdf" is recommended as the most reliable and interoperable in this context.

Searching by Date

Dates are passed as query parameters on the URL. Since the URL parameters cannot handle comparators (for example, >, <=) these are passed as part of the date.

fromdate<=2016-01-01
todate=>2016-12-31

To search for a date range, pass in the date twice.

fromdate<=2010-01-01&todate=>2010-12-31

This search would include every day in the year 2010.

Sample Output 

{"Contained":[{"StatusElement":{"Value":2},"Code":{"Coding":[{"SystemElement":{"Value":"http://loinc.org"},"CodeElement":{"Value":"5778-6"},"DisplayElement":{"Value":"Color of Urine"}}],"TextElement":{"Value":"URINE PREGNANCY TST VIS COLOR CMPRSN METHS"}},"Subject":{"ReferenceElement":{"Value":"emedapi/Fhir/Patient/%2fBiFliYYDYY%3d"}},"Performer":[{"DisplayElement":{}}],"IdElement":{"Value":"337"}},{"StatusElement":{"Value":2},"Code":{"Coding":[{"SystemElement":{"Value":"http://loinc.org"},"CodeElement":{"Value":"5811-5"},"DisplayElement":{"Value":"Specific gravity of Urine by Test strip"}}],"TextElement":{"Value":"URINE PREGNANCY TST VIS COLOR CMPRSN METHS"}},"Subject":{"ReferenceElement":{"Value":"emedapi/Fhir/Patient/%2fBiFliYYDYY%3d"}},"Performer":[{"DisplayElement":{}}],"IdElement":{"Value":"337"}},{"StatusElement":{"Value":2},"Code":{"Coding":[{"SystemElement":{"Value":"http://loinc.org"},"CodeElement":{"Value":"5803-2"},"DisplayElement":{"Value":"pH of Urine by Test strip"}}],"TextElement":{"Value":"URINE PREGNANCY TST VIS COLOR CMPRSN METHS"}},"Subject":{"ReferenceElement":{"Value":"emedapi/Fhir/Patient/%2fBiFliYYDYY%3d"}},"Performer":[{"DisplayElement":{}}],"ReferenceRange":[{"Low":{"ValueElement":{"Value":5},"UnitElement":{"Value":"5.0  [pH]"},"SystemElement":{"Value":"http://unitsofmeasure.org"}},"High":{"ValueElement":{"Value":8},"UnitElement":{"Value":"5.0  [pH]"},"SystemElement":{"Value":"http://unitsofmeasure.org"}}}],"IdElement":{"Value":"337"}},{"StatusElement":{"Value":2},"Code":{"Coding":[{"SystemElement":{"Value":"http://loinc.org"},"CodeElement":{"Value":"5792-7"},"DisplayElement":{"Value":"Glucose [Mass/volume] in urine by test strip"}}],"TextElement":{"Value":"URINE PREGNANCY TST VIS COLOR CMPRSN METHS"}},"Subject":{"ReferenceElement":{"Value":"emedapi/Fhir/Patient/%2fBiFliYYDYY%3d"}},"Performer":[{"DisplayElement":{}}],"IdElement":{"Value":"337"}},{"StatusElement":{"Value":2},"Code":{"Coding":[{"SystemElement":{"Value":"http://loinc.org"},"CodeElement":{"Value":"5797-6"},"DisplayElement":{"Value":"Ketones [Mass/Volume] in urine by test strip"}}],"TextElement":{"Value":"URINE PREGNANCY TST VIS COLOR CMPRSN METHS"}},"Subject":{"ReferenceElement":{"Value":"emedapi/Fhir/Patient/%2fBiFliYYDYY%3d"}},"Performer":[{"DisplayElement":{}}],"IdElement":{"Value":"337"}},{"StatusElement":{"Value":2},"Code":{"Coding":[{"SystemElement":{"Value":"http://loinc.org"},"CodeElement":{"Value":"5804-0"},"DisplayElement":{"Value":"Protein[Mass/Volume] in urine by test strip"}}],"TextElement":{"Value":"URINE PREGNANCY TST VIS COLOR CMPRSN METHS"}},"Subject":{"ReferenceElement":{"Value":"emedapi/Fhir/Patient/%2fBiFliYYDYY%3d"}},"Performer":[{"DisplayElement":{}}],"IdElement":{"Value":"337"}},{"StatusElement":{"Value":2},"Code":{"Coding":[{"SystemElement":{"Value":"http://loinc.org"},"CodeElement":{"Value":"5767-9"},"DisplayElement":{"Value":"Appearance of Urine"}}],"TextElement":{"Value":"URINE PREGNANCY TST VIS COLOR CMPRSN METHS"}},"Subject":{"ReferenceElement":{"Value":"emedapi/Fhir/Patient/%2fBiFliYYDYY%3d"}},"Performer":[{"DisplayElement":{}}],"IdElement":{"Value":"337"}}],"resourceType":"DiagnosticOrder"}

Expected Exceptions

I). Invalid Patient ID (Patient ID is the Mandatory parameter)
II).If the patient does not have Lab orders, empty bundle json will return.

Lab Orders

Retrieving a patient's Feature Lab Orders

The logical ID (of the patient to retrieve) is passed as part of the URL. The logical ID is found as the result of a search. 

GET https://stage.emedpractice.com/emedapi/Fhir/LabOrders?pid=%2fBiFliYYDYY%3d
GET https://stage.emedpractice.com/emedapi/Fhir/LabOrders?pid=%2fBiFliYYDYY%3d&fromdate<=2012-01-04&todate=>2012-06-04
Name Required? Type Description
pid yes url The logical ID of the patient. This is retrieved using the search function.
date no string A string representing a date to include in the search. See below for more information.

A DAF CarePlan is returned. The Argonaut Assessment and Plan of Treatment IG provides the API documentation for searching for and fetching patient assessment and plan of treatment data using the CarePlan resource. The search supports the narrative elements of the Assessment and Plan section which is the minimal necessary criteria to support the 2015 Edition ONC Certification criterion Data Category Request 170.315(g)(8).

Name Type Cardinality Description
identifier 0..* External IDs for this plan. This is a business identifier, not a resource identifier. This records identifiers associated with this care plan that are defined by business processes and/or used to refer to it when a direct URL reference to the resource itself is not appropriate. For example, in CDA documents or in written/printed documentation.
subject Reference(Patient, Group) 0..1 Who the care plan is for. This identifies the patient or group whose intended care is described by the plan.
status code 1..1 Indicates hether the plan is currently acted upon, represents future intentions, or is now a historical record. It allows clinicians to determine whether the plan is actionable or not. Conformance is required, and the valid statuses include: Proposed, Pending, Active, Completed, and Cancelled.
category CodeableConcept 0..* Identifies what kind of plan this is to support differentiation between multiple co-existing plans. For example, "Home health", "psychiatric", "asthma", "disease management", "wellness plan", and so forth. There may be multiple axis of categorization, and one plan may serve multiple purposes. In some cases, this may be redundant with references to CarePlan.concern. This value set contains 21 concepts. For more information on this value set, see: http://hl7.org/fhir/ValueSet/care-plan-category.
narrative summary string 0..1 Text or HTML description of the assessment and plan. CarePlan.text.status is either Generated or Additional. This tool uses Generated. For more information on this value set, see: http://hl7.org/fhir/narrative-status, which defines the following codes: Generated, Extensions, Additional, and Empty.

Searching by Date

Dates are passed in as query parameters on the URL. Since the URL parameters cannot handle comparators (for example, >, <=), these are passed as part of the date.

fromdate<=2016-01-01
todate=>2016-12-31

To search for a date range, pass in the date twice.

e.g. fromdate<=2010-01-01&todate=>2010-12-31

This search would include every day in the year 2010.

Sample Output 

{"Identifier":[{"ValueElement":{"Value":"YrItVniimrc="}}],"Subject":{"ReferenceElement":{"Value":"Patient/7OddVzA6kuw="},"DisplayElement":{"Value":"Newman_b1 Alice"}},"StatusElement":{"Value":2},"Context":{"ReferenceElement":{"Value":"Encounter/JyXH3oIQtvw="}},"Category":[{"TextElement":{"Value":"The patient was found to have fever and Dr Davis is suspecting Anemia based on the patient history. So Dr Davis asked the patient to closely monitor the temperature and blood pressure and get admitted to Community Health Hospitals if the fever does not subside within a day.<br /><br />Get an EKG done on 6/23/2015.<br /><br />Get a Chest X-ray done on 6/23/2015 showing the Lower Respiratory Tract Structure.<br /><br />Take Clindamycin 300mg three times a day as needed if pain does not subside<br /><br />Schedule follow on visit with Neighborhood Physicians Practice on 7/1/2015<br /><br />"}}],"DescriptionElement":{"Value":"The patient was found to have fever and Dr Davis is suspecting Anemia based on the patient history. So Dr Davis asked the patient to closely monitor the temperature and blood pressure and get admitted to Community Health Hospitals if the fever does not subside within a day.<br /><br />Get an EKG done on 6/23/2015.<br /><br />Get a Chest X-ray done on 6/23/2015 showing the Lower Respiratory Tract Structure.<br /><br />Take Clindamycin 300mg three times a day as needed if pain does not subside<br /><br />Schedule follow on visit with Neighborhood Physicians Practice on 7/1/2015<br /><br />"},"Text":{"StatusElement":{"Value":2}},"resourceType":"LabOrders"}

Expected Exceptions

I). Invalid Patient ID (Patient ID is the Mandatory parameter)
II).If the patient does not have Lab orders, empty bundle json will return.

Measurements and simple assertions

Retrieving a patient's vital signs

The logical ID (of the patient to retrieve) is passed as part of the URL. The logical ID is found as the result of a search. 

GET https://stage.emedpractice.com/emedapi/Fhir/Observation?pid=%2fBiFliYYDYY%3d
GET https://stage.emedpractice.com/emedapi/Fhir/Observation?pid=%2fBiFliYYDYY%3d&fromdate<=2017-05-01&todate=>2017-06-01
Name Required? Type Description
pid yes url The logical ID of the patient. This is retrieved using the search function.
date no string A string representing a date to include in the search. See below for more information.

A DAF Observation is returned.

Name Type Cardinality Description
identifier 0..* A unique identifier for the simple observation instance. Allows observations to be distinguished and referenced.
status code 1..1 The status of the vital sign result value. The status of individual results needs to be tracked. Some results are finalized before the whole report is finalized. The conformance on this value set is required. Values include: Registered, Preliminary, Final, Amended, Cancelled, Entered in Error, and Unknown. For more information on this value set, see: http://hl7.org/fhir/ValueSet/observation-status
category CodeableConcept 0..1 Classification of type of observation. Clinical observations measure the body's basic functions such as such as blood pressure, heart rate, respiratory rate, height, weight, body mass index, head circumference, pulse oximetry, temperature, and body surface area. For more information on this value set, see: http://hl7.org/fhir/ValueSet/observation-category
code CodeableConcept 1..1 This identifies the vital sign result type. Coded responses are from C-CDA Vital Sign Results. 1. Shall contain exactly one [1..1] code, where the @code should be selected from ValueSet HITSP Vital Sign Result Type. This value set indicates the allowed vital sign result types. The vocabulary selected for this value set aligns with requirements in the Meaningful Use (MU) Stage 2. Note the concept Blood pressure systolic and diastolic (55284-4) is used to group the related observations Systolic blood pressure (8480-6) and Diastolic blood pressure (8462-4). It shall not be used alone, but both 8480-6 and 8462-2 shall also be valued. The codes shall be taken from C-CDA Vital Sign Result; other codes may be used where these codes are not suitable. For more information on this value set, see: http://hl7.org/fhir/ValueSet/observation-codes
subject Reference(Patient, Group, Device, Location) 0..1 Who and/or what this vital is for. The patient, or group of patients, location, or device whose characteristics (direct or indirect) are described by the observation and into whose record the observation is placed. Indirect characteristics may be those of a specimen, fetus, donor, other observer (for example a relative or EMT), or any observation made about the subject. Observations have no value if you don't know who or what they're about. Note: One would expect this element to be a cardinality of 1..1. The only circumstance in which the subject can be missing is when the observation is made by a device that does not know the patient. In this case, the observation shall be matched to a patient through some context/channel matching technique, and at this point, the observation should be updated.
encounter Reference(Encounter) 0..1 The healthcare event (for example, a patient and healthcare provider interaction) during which this vital was obtained. For some observations it may be important to know the link between the vital sign and a particular encounter.
effectiveDateTime dateTime 0..1 Clinically relevant time/time-period for observation. Often just a dateTime for Vital Signs. Knowing when an observation was deemed true is important to its relevance as well as determining trends. At least a date should be present unless this observation is a historical report.
effectivePeriod Period 0..1 Clinically relevant time/time-period for observation. Often a dateTime for Vital Signs is preferred but if it is a historical instance, then a time period is sufficient.
issued Hl7.Fhir.Model.Instant 0..1 Date/Time this was made available.
performer Reference(Practitioner, Organization, Patient, RelatedPerson) 0..* Who is responsible for the observation or obtaining the vital sign. May give a degree of confidence in the observation and also indicates where follow-up questions should be directed.
valueQuantity Quantity 0..1 Vital Sign Value recorded with UCUM. Common UCUM units for recording Vital Signs. The codes shall be taken from Common UCUM units as defined in http://unitsofmeasure.org Examples include % (percent), cm (centimeter), kg (kilogram), mm(Hg) (millimeter of mercury), /min (per minute) and kg/m2 (kilogram). Note: Normally, an observation will have either a value or a set of related observations. A few observations (e.g. Apgar score) may have both a value and related observations (for an Apgar score, the observations from which the measure is derived). If a value is present, the datatype for this element should be determined by Observation.code. This element has a variable name depending on the type as follows: valueQuantity, valueCodeableConcept, valueString, valueRange, valueRatio, valueSampledData, valueAttachment, valueTime, valueDateTime, or valuePeriod. (The name format is "Ëœvalue" + the type name" with a capital on the first letter of the type).
valueQuantity.value Quantity 0..1 The value of the measured amount. The value includes an implicit precision in the presentation of the value. Precision is handled implicitly in almost all cases of measurement. The implicit precision in the value should always be honored. Monetary values have their own rules for handling precision (refer to standard accounting text books).
valueQuantity.unit Quantity 0..1 A human-readable form of the unit. There are many representations for units of measure and in many contexts, particular representations are fixed and required. For example, mcg for micrograms.
valueQuantity.system Quantity 0..1 The identification of the system that provides the coded form of the unit. Need to know the system that defines the coded form of the unit. Fixed value http://unitsofmeasure.org.
valueQuantity.code Quantity 0..1 Coded responses from the common UCUM units for vital signs value set. Need a computable form of the unit that is fixed across all forms. UCUM provides this for quantities, but SNOMED CT provides many units of interest. The preferred system is UCUM, but SNOMED CT can also be used (for customary units) or ISO 4217 for currency. The context of use may additionally require a code from a particular system.
dataAbsentReason CodeableConcept 0..1 Provides a reason why the expected value in the element Observation.value[x] is missing. Codes specifying why the result (Observation.value[x]) is missing. The codes shall be taken from Observation Value Absent Reason value set, however other codes may be used where these codes are not suitable. This value set contains 9 concepts.
interpretation CodeableConcept 0..1 This value set defines the set of codes that can be used to indicate the meaning/use of a reference range. The value set is extensible and contains 33 concepts. Examples include A (Abnormal), H (High), L (Low), and N (Normal). For more information on this value set, see http://hl7.org/fhir/ValueSet/observation-interpretation.
referenceRange BackboneElement 0..* Guidance on how to interpret the value by comparison to a normal or recommended range. Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts. Most observations only have one generic reference range. Systems may choose to restrict to only supplying the relevant reference range based on knowledge about the patient (for example, specific to the patient's age, gender, weight, and other factors), but this may not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them should be provided in the reference range and/or age properties.
referenceRange.Low SimpleQuantity 0..1 Indication that the vital result is lower than the defined reference range. Binding is common UCUM units for recording Vital Signs.
referenceRange.High SimpleQuantity 0..1 Indication that the vital result is higher than the defined reference range. Binding is common UCUM units for recording Vital Signs.
Respiratory rate SimpleQuantity 0..1 Recorded under LOINC Code 9279-1 using UOM of (breaths)/min.
Heart rate SimpleQuantity 0..1 Recorded under LOINC Code 8867-4 using UOM of (beats)/min.
Oxygen saturation SimpleQuantity 0..1 Recorded under LOINC Code 59408-5 using UOM of % Oxygen saturation in Arterial blood by Pulse oximetry.
Body temperature SimpleQuantity 0..1 Recorded under LOINC Code 8310-5 using UOM of Cel or [degF].
Body height SimpleQuantity 0..1 Recorded under LOINC Code 8302-2 using UOM cm or [in].
Body weight SimpleQuantity 0..1 Recorded under LOINC Code 29463-7 using UOM g, kg or lb.
Body mass index SimpleQuantity 0..1 Recorded under LOINC Code 39156-5 using UOM kg/m2.
Blood pressure systolic and diastolic SimpleQuantity 1..1 Recorded under LOINC Code 55284-4 using UOM mm[Hg].
Systolic blood pressure SimpleQuantity 1..1 Recorded under LOINC Code 8480-6 using UOM mm[Hg]. When recording a blood pressure using systolic and diastolic as separate entities, both must be recorded in order for the blood pressure to be valid.
Diastolic blood pressure SimpleQuantity 1..1 Recorded under LOINC Code 8462-4 using UOM mm[Hg]. When recording a blood pressure using systolic and diastolic as separate entities, both must be recorded in order for the blood pressure to be valid.
related SimpleQuantity 1..1 Codes specifying how two observations are related. This is used when reporting systolic and diastolic blood pressure. The codes shall be taken from the ObservationRelationshipType value set.

Searching by Date

Dates are passed in as Query paramters on the URL. Since the URL parameters cannot handle comparators (e.g. >, <=) these are passed in as pat of the date

fromdate<=2016-01-01
todate=>2016-12-31

To search for a date range, you pass in the date twice

e.g. fromdate<=2010-01-01&todate=>2010-12-31 This search would include every day in the year 2010

Sample Output 

{"resourceType":"Bundle","id":"bundle-example","type":"searchset","total":"7","entry":[{"fullUrl":"emedapi/Fhir/Observation?type=weight&_id=8WZzO9hlBzQ%3d","resource":{"resourceType":"Observation","id":"8WZzO9hlBzQ%3d","text":{"status":"generated"},"status":"final","category":{"coding":[{"system":"http://hl7.org/fhir/observation-category","code":"vital-signs","display":"Vital Signs"}],"text":"Vital Signs"},"code":{"coding":[{"system":"http://loinc.org","code":"29463-7","display":"Body Weight"}],"text":"weight"},"subject":{"reference":"Patient/%2fBiFliYYDYY%3d"},"encounter":{"reference":"Encounter/B92iG0czflA%3d"},"effectiveDateTime":"2017-05-02","valueQuantity":{"value":"194","unit":"lbs","system":"http://unitsofmeasure.org","code":"lbs"}}},{"fullUrl":"emedapi/Fhir/Observation?type=height&_id=8WZzO9hlBzQ%3d","resource":{"resourceType":"Observation","id":"8WZzO9hlBzQ%3d","text":{"status":"generated"},"status":"final","category":{"coding":[{"system":"http://hl7.org/fhir/observation-category","code":"vital-signs","display":"Vital Signs"}],"text":"Vital Signs"},"code":{"coding":[{"system":"http://loinc.org","code":"8302-2","display":"height"}],"text":"height"},"subject":{"reference":"Patient/%2fBiFliYYDYY%3d"},"encounter":{"reference":"Encounter/B92iG0czflA%3d"},"effectiveDateTime":"2017-05-02","valueQuantity":{"value":"177","unit":"cm","system":"http://unitsofmeasure.org","code":"cm"}}},{"fullUrl":"emedapi/Fhir/Observation?type=BMI&_id=8WZzO9hlBzQ%3d","resource":{"resourceType":"Observation","id":"8WZzO9hlBzQ%3d","text":{"status":"generated"},"status":"final","category":{"coding":[{"system":"http://hl7.org/fhir/observation-category","code":"vital-signs","display":"Vital Signs"}],"text":"Vital Signs"},"code":{"coding":[{"system":"http://loinc.org","code":"59574-4","display":"bmi"}],"text":"bmi"},"subject":{"reference":"Patient/%2fBiFliYYDYY%3d"},"encounter":{"reference":"Encounter/B92iG0czflA%3d"},"effectiveDateTime":"2017-05-02","valueQuantity":{"value":"27.8","unit":"BMIAG","system":"http://unitsofmeasure.org","code":"BMIAG"}}},{"fullUrl":"emedapi/Fhir/Observation?type=bp&_id=8WZzO9hlBzQ%3d","resource":{"resourceType":"Observation","id":"8WZzO9hlBzQ%3d","text":{"status":"generated"},"status":"final","category":{"coding":[{"system":"http://hl7.org/fhir/observation-category","code":"vital-signs","display":"Vital Signs"}],"text":"Vital Signs"},"code":{"coding":[{"system":"http://loinc.org","code":"55284-4","display":"Blood pressure systolic and diastolic"}],"text":"Blood pressure systolic and diastolic"},"subject":{"reference":"Patient/%2fBiFliYYDYY%3d"},"encounter":{"reference":"Encounter/B92iG0czflA%3d"},"effectiveDateTime":"2017-05-02","component":[{"code":{"coding":[{"system":"http://loinc.org","code":"8480-6","display":"Systolic blood pressure"}],"text":"Systolic blood pressure","valueQuantity":{"value":"145","unit":"mmHg","system":"http://unitsofmeasure.org","code":"mm[Hg]"}}},{"code":{"coding":[{"system":"http://loinc.org","code":"8462-4","display":"Diastolic blood pressure"}],"text":"Diastolic blood pressure"},"valueQuantity":{"value":"88","unit":"mmHg","system":"http://unitsofmeasure.org","code":"mm[Hg]"}}]}},{"fullUrl":"emedapi/Fhir/Observation?type=rr&_id=8WZzO9hlBzQ%3d","resource":{"resourceType":"Observation","id":"8WZzO9hlBzQ%3d","text":{"status":"generated"},"status":"final","category":{"coding":[{"system":"http://hl7.org/fhir/observation-category","code":"vital-signs","display":"Vital Signs"}],"text":"Vital Signs"},"code":{"coding":[{"system":"http://loinc.org","code":"9279-1","display":"respiratory_rate"}],"text":"respiratory_rate"},"subject":{"reference":"Patient/%2fBiFliYYDYY%3d"},"encounter":{"reference":"Encounter/B92iG0czflA%3d"},"effectiveDateTime":"2017-05-02","valueQuantity":{"value":"18","unit":"breaths per minute","system":"http://unitsofmeasure.org","code":"/min"}}},{"fullUrl":"emedapi/Fhir/Observation?type=heart&_id=8WZzO9hlBzQ%3d","resource":{"resourceType":"Observation","id":"8WZzO9hlBzQ%3d","text":{"status":"generated"},"status":"final","category":{"coding":[{"system":"http://hl7.org/fhir/observation-category","code":"vital-signs","display":"Vital Signs"}],"text":"Vital Signs"},"code":{"coding":[{"system":"http://loinc.org","code":"8867-4","display":"heart_rate"}],"text":"heart_rate"},"subject":{"reference":"Patient/%2fBiFliYYDYY%3d"},"encounter":{"reference":"Encounter/B92iG0czflA%3d"},"effectiveDateTime":"2017-05-02","valueQuantity":{"value":"80","unit":"{beats}/min","system":"http://unitsofmeasure.org","code":"{beats}/min"}}},{"fullUrl":"emedapi/Fhir/Observation?type=Oxygen&_id=8WZzO9hlBzQ%3d","resource":{"resourceType":"Observation","id":"8WZzO9hlBzQ%3d","text":{"status":"generated"},"status":"final","category":{"coding":[{"system":"http://hl7.org/fhir/observation-category","code":"vital-signs","display":"Vital Signs"}],"text":"Vital Signs"},"code":{"coding":[{"system":"http://loinc.org","code":"59408-5","display":"Oxygen saturation in Arterial blood by Pulse oximetry "}],"text":"oxygen_saturation"},"subject":{"reference":"Patient/%2fBiFliYYDYY%3d"},"encounter":{"reference":"Encounter/B92iG0czflA%3d"},"effectiveDateTime":"2017-05-02","valueQuantity":{"value":"95","unit":"%O2","system":"http://unitsofmeasure.org","code":"%"}}}]}

Expected Exceptions

I). Invalid Patient ID (Patient ID is the Mandatory parameter)
II).If the patient does not have Observation (Vitals), empty bundle json will return.

Care team for patient

Retrieving a patient's care team(s)

The logical ID of the patient to retrieve is passed as part of the URL. The logical ID is found as the result of a search. 

GET  https://stage.emedpractice.com/emedapi/Fhir/Practitioner?pid=%2fBiFliYYDYY%3d
Name Required? Type Description
pid yes URL The logical ID of the patient. This is retrieved using the search function.

A DAF care plan is returned. Since we are using the CarePlan Resource for identifying the care team members, constraints on that resource are defined for this purpose only. For example, creating a care team profile using care plan.

Name Type Cardinality Description
identifier 0..* External IDs for this plan. This records identifiers associated with this care team that are defined by business processes and/or used to refer to it when a direct URL reference to the resource itself is not appropriate. This is a business identifier, not a resource identifier.
subject Reference(Patient, Group) 0..1 Who the care team is for. Identifies the patient whose intended care is handled by the team.
status code 1..1 Indicates whether the plan is currently being acted upon, represents future intentions, or is now a historical record. It also allows clinicians to determine whether the plan is actionable or not. Statuses returned include: Proposed, Draft (Pending), Active, Completed, and Cancelled.
category CodeableConcept 0..* Options could include Problem, Health Concern, Care Team, or Assessment and Plan of Treatment. A type of plan which utilizes "Assessment and Plan of Treatment" - the clinical conclusions and assumptions that guide the patient's treatment and the clinical activities formulated for a patient. Where the category is just "Assessment and Plan," only the category "Assessment and Plan" will be returned.
participant 0..* Members of the team. Identifies all people and organizations who are expected to be involved in the care team. Allows representation of care teams, and helps scope the care plan. In some cases, this may be a determiner of access permissions.
participant.role CodeableConcept 0..1 Indicates the specific responsibility of an individual within the care team, such as primary physician, team coordinator, or caregiver. Roles may be inferred by type of practitioner. These are relationships that hold only within the context of the care team. General relationships should be handled as properties of the patient resource directly. For more information on this value set, see http://hl7.org/fhir/ValueSet/participant-role.
participant.member Reference(Practitioner, RelatedPerson, Patient, Organization) 0..1 The specific person or organization who is participating in or expected to participate in the care team. The patient only needs to be listed if they have a role other than subject of care. Member is optional because some participants may be known only by their role, particularly in draft plans.

Sample Output 

{"Identifier":[{"SystemElement":{"Value":"emedapi/Fhir/Patient/Practitioner"},"ValueElement":{"Value":"DdnwakgKzrk%3d"}}],"ActiveElement":{"Value":true},"Name":{"FamilyElement":[{"Value":"Davis"}],"GivenElement":[{"Value":"Albert"}],"PrefixElement":[{"Value":"Dr"}]},"Address":[{"UseElement":{"Value":1},"LineElement":[{"Value":"2472"}],"CityElement":{"Value":"Beaverton"},"StateElement":{"Value":"OR"},"PostalCodeElement":{"Value":"97006"}}],"Text":{"StatusElement":{"Value":0}},"resourceType":"Practitioner"}

Expected Exceptions

I). Invalid Patient ID (Patient ID is the Mandatory parameter)
II).If the patient does not have Practitioners (Providers) data, empty bundle json will return.

Procedure: an action that is being or was performed on a patient

Retrieving a patient's procedures

The logical ID (of the patient to retrieve) is passed as part of the URL. The logical ID is found as the result of a search. 

GET https://stage.emedpractice.com/emedapi/Fhir/Procedures?pid=%2fBiFliYYDYY%3d
GET https://stage.emedpractice.com/emedapi/Fhir/Procedures?pid=%2fBiFliYYDYY%3d&fromdate<=2017-05-01&todate=>2017-06-01
Name Required? Type Description
pid yes URL Patient's logical ID. This is retrieved using the search function.
date no string A string representing a date to include in the search. See below for more information.

A DAF Procedure is retuned

Name Type Cardinality Description
identifier 0..* Procedure identifier. These identifiers are defined by business processes and/or used to refer to it when a direct URL reference to the resource itself is not appropriate (for example, in CDA documents, or in written/printed documentation).
subject Reference(Patient, Group) 1..1 The person, animal, or group on which the procedure was performed.
status code 1..1 in-progress , aborted , completed , entered-in-error.
category CodeableConcept 0..1 Classification of the procedure. For more information on this value set, see procedure-category.
code CodeableConcept 1..1 Identification code of the procedure. The value set defines a set of codes that can be used to indicate the type of procedure: a specific code indicating type of procedure performed from CPT, SNOMED CT, and ICD10-PCS. For more information on this value set, see procedure-code.
notPerformed boolean 0..1 Was the procedure not performed as scheduled? (Yes if not scheduled.)
reasonNotPerformed CodeableConcept 0..* Reason procedure was not performed. For more information on this value set, see procedure-not-performed-reason.
bodySite CodeableConcept 0..* Target body sites. For more information on this value set, see body-site.
reasonCodeableConcept CodeableConcept 0..1 Reason why the procedure was performed.
reasonReference Reference(Condition) 0..1 Reason for the procedure.
performer 0..* The individual who performed the procedure. This must be a real person, not equipment.
performer.actor Reference(Practitioner, Organization, Patient, RelatedPerson) 0..1 Reference to the practitioner.
performer.role CodeableConcept 0..1 The role the actor was in. Values come from performer-role.
performedDateTime dateTime 0..1 The date/time period over which the procedure was performed. Allows a period to support complex procedures that span more than one date, and also allows for the length of the procedure to be captured.
performedPeriod Period 0..1 Date/time period during which the procedure was performed.
encounter Reference(Encounter) 0..1 Encounter during which the procedure was performed.
location Reference(Location) 0..1 Location where the procedure was performed.
outcome CodeableConcept 0..1 The result of procedure. For more information on this value set, see procedure-outcome.
report Reference(DiagnosticReport) 0..* Any report resulting from the procedure.
complication CodeableConcept 0..* Complication following the procedure. For more information on this value set, see condition-code.
followUp CodeableConcept 0..* Instructions for follow up. For more information on this value set, see procedure-followup.
request Reference(CarePlan, DiagnosticOrder, ProcedureRequest, ReferralRequest) 0..1 A request for the procedure.
notes Annotation 0..* Additional information about the procedure.
focalDevice 0..* Device changed during the procedure.
focalDevice.action CodeableConcept 0..1 Kind of change to device. For more information on this value set, see device-action.
focalDevice.manipulated Reference(Device) 1..1 Device that was changed during the procedure.
used Reference(Device, Medication, Substance) 0..* Items used during procedure.

Searching by Date

Dates are passed in as Query paramters on the URL. Since the URL parameters cannot handle comparators (e.g. >, <=) these are passed in as pat of the date

fromdate<=2016-01-01
todate=>2016-12-31

To search for a date range, you pass in the date twice

e.g. fromdate<=2010-01-01&todate=>2010-12-31 This search would include every day in the year 2010

Sample Output 

{"Identifier":[{"SystemElement":{"Value":"Procedure"},"ValueElement":{"Value":"104"}}],"StatusElement":{"Value":2},"Code":{"Coding":[{"SystemElement":{"Value":"http://www.ama-assn.org/go/cpt"},"CodeElement":{"Value":"81025"},"DisplayElement":{"Value":"URINE PREGNANCY TST VIS COLOR CMPRSN METHS"}}]},"resourceType":"Procedures"}

Expected Exceptions

I). Invalid Patient ID (Patient ID is the Mandatory parameter)
II).If the patient does not have Procedure data, empty bundle json will return.

Immunization event information

Retrieving a patient's immunizations

The logical ID (of the patient to retrieve) is passed as part of the URL. The logical ID is found as the result of a search. 

GET https://stage.emedpractice.com/emedapi/Fhir/Immunization?pid=%2fBiFliYYDYY%3d
GET https://stage.emedpractice.com/emedapi/Fhir/Immunization?pid=%2fBiFliYYDYY%3d&fromdate<=2012-01-04&todate=>2012-06-04
Name Required? Type Description
pid yes URL Patient's logical ID. This is retrieved using the search function.
date no string A string representing a date to include in the search. See below for more information.

A DAF Immunization is returned.

Name Type Cardinality Description
identifier 0..* Immunization record unique identifier.
status code 1..1 Immunization current status. Valid entries include: In-Progress, On-Hold, Completed, Entered-In-Error, and Stopped. For more information on this value set, see medication-admin-status.
date dateTime 0..1 Date and time when the immunization was administered. When immunizations are patient reported, a specific date might not be known. Although partial dates are allowed, an adult patient might not be able to recall the year a childhood immunization was given.
vaccineCode CodeableConcept 1..1 Vaccine product administered. Values come from vaccine-code.
patient Reference(Patient) 1..1 Patient who received the immunization. Defines constraints and extensions on the patient resource for use in querying and retrieving patient demographic information.
wasNotGiven boolean 1..1 Flag for whether immunization was given.
reported boolean 1..1 Indicates a self-reported record.
performer Reference(Practitioner) 0..1 Who administered vaccine.
requester Reference(Practitioner) 0..1 Who ordered vaccination.
encounter Reference(Encounter) 0..1 Encounter administered as part of.
manufacturer Reference(Organization) 0..1 Vaccine manufacturer.
location Reference(Location) 0..1 Where vaccination occurred.
lotNumber string 0..1 Vaccine lot number.
expirationDate date) 0..1 Vaccine expiration date.
site CodeableConcept 0..1 Body site vaccine was administered. For more information on this value set, see immunization-site.
route CodeableConcept 0..1 How vaccine entered body. For more information on this value set, see immunization-route.
doseQuantity Hl7.Fhir.Model.SimpleQuantity 0..1 Amount of vaccine administered.
note Annotation 0..* Vaccination notes.
explanation 0..1 Administration/non-administration reasons.
explanation.reason CodeableConcept 0..* Reason why the immunization occurred. For more information on this value set, see immunization-reason.
explanation.reasonNotGiven CodeableConcept 0..* Reason why the immunization did not occur.
reaction 0..* Details of a reaction that follows the immunization.
reaction.date dateTime 0..1 Date/time when the reaction started.
reaction.detail Reference(Observation) 0..1 Additional information about the reaction.
reaction.reported boolean 0..1 Was the reaction self-reported?
vaccinationProtocol 0..* Protocol that was followed during the administration of the immunization.
vaccinationProtocol.doseSequence Hl7.Fhir.Model.PositiveInt 1..1 Dose number within series.
vaccinationProtocol.description string 0..1 Details of vaccine protocol.
vaccinationProtocol.authority Reference(Organization) 0..1 Individual who is responsible for immunization protocol.
vaccinationProtocol.series string 0..1 Name of vaccine series.
vaccinationProtocol.seriesDoses Hl7.Fhir.Model.PositiveInt 0..1 Recommended number of doses for immunity.
vaccinationProtocol.targetDisease CodeableConcept 1..* Disease immunized against.
vaccinationProtocol.doseStatus CodeableConcept 1..1 Indicates if dose counts towards immunity.
vaccinationProtocol.doseStatusReason CodeableConcept 0..1 Why dose does (not) count.

Searching by Date

Dates are passed in as Query paramters on the URL. Since the URL parameters cannot handle comparators (e.g. >, <=) these are passed in as pat of the date

fromdate<=2016-01-01
todate=>2016-12-31

To search for a date range, you pass in the date twice

e.g. fromdate<=2010-01-01&todate=>2010-12-31 This search would include every day in the year 2010

Sample Output 

{"Identifier":[{"SystemElement":{"Value":"Immunization"},"ValueElement":{"Value":"245"}}],"StatusElement":{"Value":2},"DateElement":{"Value":"2011-01-14"},"VaccineCode":{"Coding":[{"SystemElement":{"Value":"2.16.840.1.113883.6.59"},"CodeElement":{"Value":"26"},"DisplayElement":{"Value":"cholera vaccine"}}],"TextElement":{"Value":"cholera vaccine"}},"WasNotGivenElement":{"Value":true},"ReportedElement":{"Value":true},"Manufacturer":{"ReferenceElement":{"Value":"Abbott Laboratories"}},"LotNumberElement":{},"ExpirationDateElement":{"Value":"0001-01-01"},"Site":{"Coding":[{"SystemElement":{"Value":"http://hl7.org/fhir/v3/ActSite"},"CodeElement":{"Value":"0"},"DisplayElement":{}}]},"Route":{"Coding":[{"SystemElement":{"Value":"http://hl7.org/fhir/v3/RouteOfAdministration"},"CodeElement":{"Value":"0"},"DisplayElement":{}}]},"DoseQuantity":{"ValueElement":{"Value":0},"SystemElement":{"Value":"http://unitsofmeasure.org"},"CodeElement":{}},"Note":[{"TextElement":{}}],"resourceType":"Immunization"}

Expected Exceptions

I). Invalid Patient ID (Patient ID is the Mandatory parameter)
II).If the patient does not have Practitioners (Providers) data, empty bundle json will return.

An instance of a manufactured device that is used in the provision of healthcare

Retrieving a patient's implantable devices/UDI

The logical ID of the patient to retrieve is passed as part of the URL. The logical ID is found as the result of a search. 

GET https://stage.emedpractice.com/emedapi/Fhir/Device?pid=%2fBiFliYYDYY%3d
Name Required? Type Description
pid yes URL The logical ID of the patient. This is retrieved using the search function.
date no string A string representing a date to include in the search. See below for more information.

A DAF Device is returned.

Name Type Cardinality Description
identifier 0..* Unique instance identifier assigned to a device by organizations like manufacturers or owners. If the identifier indicates the type of device, Device.type should be used. This is a business identifier, not a resource identifier, often fixed to the device as a barcode, and may include names given to the device in local usage. Note that some of the barcodes affixed to the device identify its type, not its instance. For the FDA mandated Unique Device Identifier (UDI), use the Device.udi element.
type CodeableConcept 1..1 Code or identifier to indicate a kind of device. For the FDA mandated Unique Device Identifier (UDI), use the Device.udi element.
note Annotation 0..* Device notes and comments, including annotations.
status code 0..1 Status of the device availability. This value set has an inline system that defines the following codes: Available, Not Available, and Entered-in-Error.
manufacturer string 0..1 Name of device manufacturer.
model string 0..1 Model ID assigned by the manufacturer.
version string 0..1 Version number. For example, software.
manufactureDate dateTime 0..1 Manufacture date.
expiry dateTime 0..1 Date and time of expiration of this device, if applicable.
udi string 0..1 FDA mandated Unique Device Identifier.
lotNumber string 0..1 Lot number of manufacturer.
owner Reference(Organization) 0..1 Organization responsible for device.
location Reference(Location) 0..1 Where the resource is found.
patient Reference(Patient) 0..1 If the resource is affixed to a person.
contact ContactPoint 0..* Details for human/organization for support.
url URI 0..1 Network address to contact device.

Sample Output 

{"resourceType":"Device","id":"prKrfXad%2f80%3d","identifier":[{"system":"emedapi/Fhir/Device","value":"prKrfXad%2f80%3d"},{"type":{"coding":[{"system":"http://hl7.org/fhir/identifier-type","code":"SNO"}],"text":"Serial Number"},"value":"00643169007222"}],"status":"active","type":{"coding":[{"system":"http://snomed.info/sct","code":"704708004","display":"Cardiac resynchronization therapy implantable defibrillator"}]},"lotNumber":"(01)00643169007222(17)160128(21)BLC200461H","manufacturer":"MEDTRONIC, INC.","model":"DTBA1QQ"}

Expected Exceptions

I). Invalid Patient ID (Patient ID is the Mandatory parameter)
II).If the patient does not have Implantable Device(s) data, empty bundle json will return.

Healthcare plan for patient or group

Retrieving a patient's assessment and plan of treatments

The logical ID (of the patient to retrieve) is passed as part of the URL. The logical ID is found as the result of a search. 

GET https://stage.emedpractice.com/emedapi/Fhir/CarePlan?pid=%2fBiFliYYDYY%3d
GET https://stage.emedpractice.com/emedapi/Fhir/CarePlan?pid=%2fBiFliYYDYY%3d&fromdate<=2012-01-04&todate=>2012-06-04
Name Required? Type Description
pid yes url The logical ID of the patient. This is retrieved using the search function.
date no string A string representing a date to include in the search. See below for more information.

A DAF CarePlan is returned. The Argonaut Assessment and Plan of Treatment IG provides the API documentation for searching for and fetching patient assessment and plan of treatment data using the CarePlan resource. The search supports the narrative elements of the Assessment and Plan section which is the minimal necessary criteria to support the 2015 Edition ONC Certification criterion Data Category Request 170.315(g)(8).

Name Type Cardinality Description
identifier 0..* External IDs for this plan. This is a business identifier, not a resource identifier. This records identifiers associated with this care plan that are defined by business processes and/or used to refer to it when a direct URL reference to the resource itself is not appropriate. For example, in CDA documents or in written/printed documentation.
subject Reference(Patient, Group) 0..1 Who the care plan is for. This identifies the patient or group whose intended care is described by the plan.
status code 1..1 Indicates hether the plan is currently acted upon, represents future intentions, or is now a historical record. It allows clinicians to determine whether the plan is actionable or not. Conformance is required, and the valid statuses include: Proposed, Pending, Active, Completed, and Cancelled.
category CodeableConcept 0..* Identifies what kind of plan this is to support differentiation between multiple co-existing plans. For example, "Home health", "psychiatric", "asthma", "disease management", "wellness plan", and so forth. There may be multiple axis of categorization, and one plan may serve multiple purposes. In some cases, this may be redundant with references to CarePlan.concern. This value set contains 21 concepts. For more information on this value set, see: http://hl7.org/fhir/ValueSet/care-plan-category.
narrative summary string 0..1 Text or HTML description of the assessment and plan. CarePlan.text.status is either Generated or Additional. This tool uses Generated. For more information on this value set, see: http://hl7.org/fhir/narrative-status, which defines the following codes: Generated, Extensions, Additional, and Empty.

Searching by Date

Dates are passed in as query parameters on the URL. Since the URL parameters cannot handle comparators (for example, >, <=), these are passed as part of the date.

fromdate<=2016-01-01
todate=>2016-12-31

To search for a date range, pass in the date twice.

e.g. fromdate<=2010-01-01&todate=>2010-12-31

This search would include every day in the year 2010.

Sample Output 

{"Identifier":[{"ValueElement":{"Value":"YrItVniimrc="}}],"Subject":{"ReferenceElement":{"Value":"Patient/7OddVzA6kuw="},"DisplayElement":{"Value":"Newman_b1 Alice"}},"StatusElement":{"Value":2},"Context":{"ReferenceElement":{"Value":"Encounter/JyXH3oIQtvw="}},"Category":[{"TextElement":{"Value":"The patient was found to have fever and Dr Davis is suspecting Anemia based on the patient history. So Dr Davis asked the patient to closely monitor the temperature and blood pressure and get admitted to Community Health Hospitals if the fever does not subside within a day.<br /><br />Get an EKG done on 6/23/2015.<br /><br />Get a Chest X-ray done on 6/23/2015 showing the Lower Respiratory Tract Structure.<br /><br />Take Clindamycin 300mg three times a day as needed if pain does not subside<br /><br />Schedule follow on visit with Neighborhood Physicians Practice on 7/1/2015<br /><br />"}}],"DescriptionElement":{"Value":"The patient was found to have fever and Dr Davis is suspecting Anemia based on the patient history. So Dr Davis asked the patient to closely monitor the temperature and blood pressure and get admitted to Community Health Hospitals if the fever does not subside within a day.<br /><br />Get an EKG done on 6/23/2015.<br /><br />Get a Chest X-ray done on 6/23/2015 showing the Lower Respiratory Tract Structure.<br /><br />Take Clindamycin 300mg three times a day as needed if pain does not subside<br /><br />Schedule follow on visit with Neighborhood Physicians Practice on 7/1/2015<br /><br />"},"Text":{"StatusElement":{"Value":2}},"resourceType":"Assessment"}

Expected Exceptions

I). Invalid Patient ID (Patient ID is the Mandatory parameter)
II).If the patient does not have Assessment plan data, empty bundle json will return.

Intended objective(s) for a patient, group or organization

Retrieving a patient's goals

The logical ID (of the patient to retrieve) is passed as part of the URL. The logical ID is found as the result of a search. 

GET https://stage.emedpractice.com/emedapi/Fhir/Goal?pid=%2fBiFliYYDYY%3d
Name Required? Type Description
pid yes URL The logical ID of the patient. This is retrieved using the search function.
date no string A string representing a date to include in the search. See below for more information.

A DAF Goal is retuned

Name Type Cardinality Description
identifier 0..* External ID for this goal. This is a business identifier, not a resource identifier. This records identifiers associated with this care plan that are defined by business processes and/or used to refer to it when a direct URL reference to the resource itself is not appropriate (for example, in CDA documents, or in written/printed documentation).
subject Reference(Patient, Group, Organization) 0..1 Who the goal is intended for. Subject identifies the patient, group, or organization for whom the goal is being established, typically the patient. Subject is optional to support anonymized reporting.
startDate Date 0..1 When the goal pursuit begins. A date or partial date (for example, just year or year + month) as used in human communication. There is no time zone. Dates shall be valid dates.
startCodeableConcept CodeableConcept 0..1 When the goal pursuit begins. This option is a codable concept that identifies types of events that might trigger the start of a goal as defined in http://snomed.info/sct. For example, Admission to the hospital (32485007), Childbirth (386216000), or Completion time of procedure (442137000).
targetDate Date 0..1 Reach goal on or before. Indicates either the date or the duration after the start by which the goal should be met. This identifies when the goal should be evaluated. This can be a target date (or partial) or a duration of time.
targetQuantity Quantity 0..1 Reach goal on or before. Indicates either the date or the duration after start by which the goal should be met. This identifies when the goal should be evaluated. This can be a target date (or partial) or a duration of time.
category CodeableConcept 0..* Indicates a category the goal falls within, and allows goals to be filtered and sorted based on a particular category. Examples of category include: Treatment, Dietary, or Behavioral. For more information on this value set, see http://hl7.org/fhir/ValueSet/goal-category.
description string 1..1 Desired outcome. This is a human-readable description of a specific desired objective of care. Without a description of what's trying to be achieved, the element has no purpose.
status code 1..1 Indicates whether the goal has been reached and is still considered relevant. Options include: Proposed, Planned, Accepted, Rejected, In-progress, Achieved, Sustaining, On-hold, and Cancelled. For more information on this value set, see http://hl7.org/fhir/ValueSet/goal-status.
statusDate date) 0..1 When goal status took effect. This identifies the current status. For example, when the goal was initially created, when the goal was achieved, when the goal was cancelled, and so on.
statusReason CodeableConcept 0..1 Captures the reason for the current status. This is typically captured for statuses such as Rejected, On-hold, or Cancelled but could be present for others. Conformance is set as example.
author Reference( Patient, Practitioner- https://www.hl7.org/fhir/Practitioner.html or Related Person- https://www.hl7.org/fhir/RelatedPerson.html 0..1 Who is responsible for creating the goal. This indicates whose goal this is: patient goal, practitioner goal, related person goal, and so on. This is the individual responsible for establishing the goal, not necessarily who recorded it. (For that, use the provenance resource.)
priority CodeableConcept 0..1 Identifies the mutually agreed level of importance associated with reaching and/or sustaining the goal. This is used for sorting and presenting goals. Extensions are available to track priorities as established by each participant. For example, priority from the patient's perspective, different practitioners' perspectives, or family member's perspectives. The ordinal extension on coding can be used to convey a numerically comparable ranking to priority. Conformance is preferred and defines the following codes: High, Medium, and Low. Different coding systems may use "low value=important." For more information on this value set, see: http://hl7.org/fhir/ValueSet/goal-priority.
addresses Reference(Condition, Observation, MedicationStatement, NutritionOrder, RiskAssessment) 0..* Identified conditions and other health record elements that are intended to be addressed by the goal. This allows specific goals to be explicitly linked to the concerns they're dealing with which makes the goal more understandable. Reference profiles include: Condition, Observation, MedicationStatement, NutritionOrder, ProcedureRequest, and RiskAssessment.
note Annotation 0..* Comments or annotation about the goal. Must capture information about the goal that doesn't actually describe the goal. May be used for progress notes, concerns, or other related information that doesn't actually describe the goal itself. This is also an MU requirement, which determines the narrative portion of the goal.
outcome 0..* The end result of goal. Outcome identifies the change (or lack of change) at the point where the goal was deemed to be cancelled or achieved. Outcome tracking is a key aspect of care planning. Note that this should not duplicate the goal status.
outcome.resultCodeableConcept CodeableConcept 0..1 Code or observation that resulted from goal.
outcome.resultReference Reference(Observation) 0..1 Code or observation that resulted from the goal. This describes what has or has not changed. GoalOutcome: The result of the goal. For example, "25% increase in shoulder mobility," "Anxiety reduced to moderate levels," or "15 kg weight loss sustained over 6 months."

Sample Output 

{"resourceType":"Goal","id":"9H8hiMj2TTM%3d","identifier":[{"value":"9H8hiMj2TTM%3d"}],"status":"on-hold","priority":{"coding":[{"system":"http://hl7.org/fhir/goal-priority","code":"high-priority","display":"High Priority"}],"text":"high"},"description":{"text":"Get rid of intermittent fever that is occurring every few weeks. Need to gain more energy to do reg"},"subject":{"reference":"emedapi/Fhir/Patient?_id=%2fBiFliYYDYY%3d","display":"Newman Alice"},"startDate":"2017-05-01"}

Expected Exceptions

I). Invalid Patient ID (Patient ID is the Mandatory parameter)
II).If the patient does not have Patient Goal data, empty bundle json will return.

Detailed information about health concerns

Retrieving a patient's health concerns

The logical ID (of the patient to retrieve) is passed as part of the URL. The logical ID is found as the result of a search. 

GET https://stage.emedpractice.com/emedapi/Fhir/HealthcareService?pid=%2fBiFliYYDYY%3d
Name Required? Type Description
pid yes url The logical ID of the patient. This is retrieved using the search function.

A DAF Condition (Problem) is retuned

Name Type Cardinality Description
identifier 0..* Identifier associated with this condition that are defined by business processes and/or used to refer to it when a direct URL reference to the resource itself is not appropriate. For example, in CDA documents or in written/printed documentation.
patient Reference(Patient) 1..1 Indicates the patient who the condition record is associated with. This defines constraints and extensions on the patient resource for use in querying and retrieving patient demographic information.
encounter Reference(Encounter) 0..1 Encounter during which the condition was first asserted.
asserter Reference(Practitioner, Patient) 0..1 Individual who is making the condition statement. This could be a provider or patient reference.
dateRecorded date) 0..1 Indicates the date when this particular condition record was created in the EHR, not the date of the most recent update in terms of when severity, abatement, and so forth were specified. The date of the last record modification can be retrieved from the resource metadata.
code CodeableConcept 1..1 Identification of the condition, problem, or diagnosis. For more information on this value set, see http://hl7.org/fhir/ValueSet/condition-code.
category CodeableConcept 0..1 A category assigned to the condition. The categorization is often highly contextual and may appear poorly differentiated or not very useful in other contexts. The value set conformance is preferred and options include: Complaint, Symptom, Finding, and Diagnosis. For more information on this value set, see http://hl7.org/fhir/ValueSet/condition-category.
clinicalStatus code 0..1 The clinical status of the condition. The value set conformance is preferred and options include: Active, Relapse, Remission, and Resolved. For more information on this value set, see http://hl7.org/fhir/ValueSet/condition-clinical
verificationStatus code 1..1 The verification status of the condition or rather, the verification status to support or decline the clinical status of the condition or diagnosis. The value set conformance is required and options include: Provisional, Differential, Confirmed, Refuted, Entered-in-error, and Unknown. For more information on this value set, see http://hl7.org/fhir/ValueSet/condition-ver-status.
severity CodeableConcept 0..1 Subjective severity of condition. The value set conformance is extensible and options include: Fatal, Severe, Moderate, and Mild. Extensions are allowed. For more information on this value set, see http://hl7.org/fhir/ValueSet/condition-severity.
onsetDateTime dateTime 0..1 Estimated or actual date, date-time, or age. A date, when the Condition statement was documented. The Date Recorded represents the date when this particular Condition record was created in the EHR, not the date of the most recent update in terms of when severity, abatement, etc. were specified. The date of the last record modification can be retrieved from the resource metadata.
onsetQuantity Quantity 0..1 There shall be a code if there is a value and it shall be an expression of time. If system is present, it shall be UCUM. If value is present, it shall be positive. The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. In this case, it is used to define the onset of the condition.
onsetPeriod Period 0..1 A time period defined by a start and end date/time. A period specifies a range of times. The context of use will specify whether the entire range applies (for example, "the patient was an inpatient of the hospital for this time range") or one value from the period applies For example, "give to the patient between 2 and 4 pm on 24-Jun 2013."
onsetRange Hl7.Fhir.Model.Range 0..1 A set of ordered Quantity values defined by a low and high limit. A Range specifies a set of possible values; usually, one value from the range applies. For example, "give the patient between 2 and 4 tablets." Ranges are typically used in instructions.
onsetString String 0..1 A sequence of Unicode characters to convey the estimated onset of when the condition started.
abatementDateTime dateTime 0..1 Estimated or actual date or date-time when the Condition statement was resolved or in remission.
abatementQuantity Quantity 0..1 There shall be a code if there is a value and it shall be an expression of time. If system is present, it shall be UCUM. If value is present, it shall be positive. The context of use may frequently define what kind of quantity this is and therefore what kind of units can be used. In this case, it is used to indicate when the condition was resolved or in remission.
abatementBoolean Boolean 0..1 There is no explicit distinction between resolution and remission because in many cases the distinction is not clear. Age is generally used when the patient reports an age at which the Condition abated. If there is no abatement element, it is unknown whether the condition was resolved or in remission; applications and users should generally assume that the condition is still valid.
abatementPeriod Period 0..1 A time period defined by a start and end date/time. A period specifies a range of times for if or when the condition was resolved or in remission.
abatementRange Hl7.Fhir.Model.Range 0..1 A set of ordered quantity values defined by a low and high limit. A range specifies a set of possible values; usually, one value from the range applies. In this case, the range defines if and when the condition was resolved or in remission.
abatementString String 0..1 A sequence of unicode characters to convey when the condition was resolved or in remission.
stage 0..1 A set of codified values for which the conformance is example and is typically used to indicate stages of cancer and other conditions. Stage/grade, usually assessed formally. For more information on this value set, see http://hl7.org/fhir/valueset-condition-stage.html.
stage.summary CodeableConcept 0..1 A simple summary of the stage such as "Stage 3." The determination of the stage is disease-specific. For more information on this value set, see http://hl7.org/fhir/ValueSet/condition-stage.
stage.assessment Reference(ClinicalImpression, DiagnosticReport, Observation) 0..* Reference to a formal record of the evidence on which the staging assessment is based. Reference resources include: ClinicalImpression, DiagnosticReport, and Observation.
evidence 0..* Supporting evidence or manifestations that are the basis on which this condition is suspected or confirmed. The evidence may be a simple list of coded symptoms/manifestations, references to observations or formal assessments, or both.
evidence.code CodeableConcept 0..1 A manifestation or symptom that led to the recording of this condition. This includes a value set where the conformance is examples that describe the manifestations or symptoms. For more information on this value set, see http://hl7.org/fhir/ValueSet/manifestation-or-symptom.
evidence.detail Reference(Resource) 0..* Supporting information found elsewhere, such as links to other relevant information, including pathology reports.
bodySite CodeableConcept 0..* Anatomical location, if relevant. This value set includes all the Anatomical Structure SNOMED CT codes. For example, codes with an is-a relationship with 91723000: Anatomical structure. For more information on this value set, see http://hl7.org/fhir/ValueSet/body-site.
notes string 0..1 Additional information about the Condition. This is a general note or comment entry for further description of the condition, diagnosis, and prognosis.

Sample Output 

{"resourceType":"HealthcareService","id":"covHdmRFRAQ%3d","identifier":[{"value":"covHdmRFRAQ%3d"}],"name":"Other","comment":"Chronic Sickness exhibited by patient HealthCare Concerns refer to underlying clinical facts i. Do"}

Expected Exceptions

I). Invalid Patient ID (Patient ID is the Mandatory parameter)
II).If the patient does not have Health Concerns data, empty bundle json will return.

Detailed information about Retrieving all Data

Retrieving a patient's All Data Information

The logical ID (of the patient to retrieve) is passed as part of the URL. The logical ID is found as the result of a search. 

                GET https://stage.emedpractice.com/emedapi/Fhir/AllDataService?pid=%2fBiFliYYDYY%3d
Name Required? Type Description
pid yes url The logical ID of the patient. This is retrieved using the search function.
Type C-CDA Sample File Name and brief description
Discharge Summary showing USCDI v2 Data Elements DischargeSummary-USCDI-v2.xml

This sample file represents new and revised templates necessary to convey USCDI V2 data elements.
CCD Patient Summary CCD.xml

This sample demonstrates sections relevant to creating a summary of essential clinical data to exchange from a patient's health record.
Discharge Summary DischargeSummary.xml

This sample demonstrates sections relevant to creating a summary of information that supports a transfer of care following an inpatient discharge.
Referral Note ReferralNote.xml

This sample demonstrates sections relevant when initiating a referral to support a transfer of care to another care provider.
Progress Note ProgressNote.xml

This sample demonstrates sections relevant for documenting a patient's progress during an ongoing episode of care.
Care Plan CarePlan.xml

This sample demonstrates the organization of care plan information for exchange. It shows the relationships between health concerns, goals, interventions and health assessment and outcome evaluation information are expressed.
Unstructured Document UnstructuredDocument.xml

This sample demonstrates use of the option for a C-CDA document.
Legal Authenticator-signed LegalAuthenticator-signed.xml

This sample demonstrates use of the HL7 Digital Signature standard for digitally signing a C-CDA document as the Legal Authenticator.

Sample Output

                {"resourceType":"HealthcareService","id":"covHdmRFRAQ%3d","identifier":[{"value":"covHdmRFRAQ%3d"}],"name":"Other","comment":"Chronic Sickness exhibited by patient HealthCare Concerns refer to underlying clinical facts i. Do"}

Expected Exceptions

Invalid Patient ID (Patient ID is the Mandatory parameter)

BULK FHIR Exports

An export operation that implements the BULK FHIR Export ONC requirements can be requested by issuing a GET request to the following endpoints:

  • System Export, requires the system/*.$export scope. Exports All supported FHIR resources 
    curl -X GET 'https://fhirbackup.emedpractice.com:8443/r4/$export'
  • Group Export, requires the system/Group.$export scope. Exports all data in the Patient Compartment for the group. The system automatically creates a group for every Practitioner resource in the system where the patients in the group are the individuals who have the Practitioner as their primary care provider. 
    curl -X GET  'https://fhirbackup.emedpractice.com:8443/r4/Group/1/$export'
  • Patient Export, requires the system/Patient.$export scope. Exports all data for all patients in the Patient Compartment. 
    curl -X GET 'https://fhirbackup.emedpractice.com:8443/r4/Patient/$export'

You will get an empty body response with a Content-Location header with the URL you can query for status updates on the export.

To query the status update operation you need the system/*.$bulkdata-status scope. An example query:

  • Status Query 
    curl -X GET 'https://fhirbackup.emedpractice.com:8443/r4/$bulkdata-status?job=92a94c00-77d6-4dfc-ae3b-73550742536d'

A status Query will return a result like the following:

                        {
                            "transactionTime": {
                                "date": "2021-02-05 20:48:38.000000",
                                "timezone_type": 3,
                                "timezone": "UTC"
                            },
                            "request": "\/apis\/default\/fhir\/Group\/1\/%24export",
                            "requiresAccessToken": true,
                            "output": [
                                {
                                "url": "https:\/\/fhirbackup.emedpractice.com:8443\/r4\/Document\/97552\/Binary",
                                "type": "Patient"
                                },
                                {
                                "url": "https:\/\/fhirbackup.emedpractice.com:8443\/r4\/Document\/105232\/Binary",
                                "type": "Encounter"
                                }
                            ],
                            "error": []
                            }

You can download the exported documents which are formatted in Newline Delimited JSON (NDJSON) by making a call to: sh curl -X GET 'https://fhirbackup.emedpractice.com:8443/r4/Document/105232/Binary'

In order to download the documents you will need the system/Document.read scope.

Bulk FHIR Scope Reference

  • All System export - system/*.$export system*.$bulkdata-status system/Document.read
  • Group System export - system/Group.$export system*.$bulkdata-status system/Document.read
  • Patient System export - system/Patient.$export system*.$bulkdata-status system/Document.read