About FHIR STU3

Health Gorilla’s FHIR STU3 implementation supports asynchronous, document-centric workflows for retrieving clinical data from multiple sources. This version is ideal for use cases involving:

Longitudinal health record aggregation
Discharge summaries and CCD documents
Patient360 queries and bulk record packaging

FHIR STU3 is used in our asynchronous APIs, including Patient360 (POST /fhir/STU3/DocumentReference/$p360-retrieve) and $everything exports. All resources follow the HL7® FHIR® STU3 specification with Health Gorilla–specific behavior and extensions where applicable.

Tip: If your calls begin with /fhir/STU3/..., you're using the STU3 version of the API.

Base URLs

Production: https://api.healthgorilla.com/fhir/STU3
Sandbox: https://sandbox.healthgorilla.com/fhir/STU3

FHIR STU3 Resource Capabilities

The table below summarizes method support for the FHIR STU3 resources in the Health Gorilla API.

Resource	Read	Search	PDF Export	`$everything`	`$p360-retrieve`	`$merge`
`AllergyIntolerance`	✅	✅		✅
`Bundle`	✅
`CarePlan`	✅	✅		✅
`ClinicalNote`	✅	✅	✅	✅
`Composition`	✅			✅
`Condition`	✅	✅		✅
`Consent`	✅	✅		✅
`Coverage`	✅	✅		✅
`DeviceUseStatement`	✅	✅		✅
`DiagnosticReport`	✅	✅	✅	✅
`DocumentReference`	✅	✅	✅	✅	✅	✅
`ElectronicFax`	✅	✅	✅	✅
`Encounter`	✅	✅		✅
`FamilyMemberHistory`	✅	✅		✅
`Goal`	✅	✅		✅
`Immunization`	✅	✅		✅
`InstantMessage`	✅	✅
`MedicationDispense`	✅	✅		✅
`MedicationRequest`	✅	✅		✅
`MedicationStatement`	✅	✅		✅
`NutritionOrder`	✅	✅		✅
`Observation`	✅	✅		✅
`Organization`	✅	✅
`Patient`	✅	✅	✅	✅
`Practitioner`	✅	✅
`PractitionerRole`	✅	✅
`ProcedureRequest`	✅	✅
`Procedure`	✅	✅		✅
`ProcedureRequest`	✅	✅		✅
`RecordLocatorService`		✅
`ReferralRequest`	✅	✅
`RequestGroup`	✅	✅	✅			✅
`Subscription`	✅	✅
`TelephonicEncounter`	✅	✅

Notes:

All operations in the FHIR STU3 API are processed asynchronously. Responses may return 202 Accepted with a polling location or webhook notification.
PDF Export: Available via Binary resource, typically linked from a DocumentReference
$everything is included in Patient Everything queries
$p360-retrieve and $merge are included in Patient360 document workflows