All registries
Standards body (SDO)

HL7 FHIR

HL7 FHIR

HealthcareCloud & APIs
WHY YOU NEED THIS

Healthcare API integrations (EHR, payers, apps) use FHIR resource catalog and REST spec at hl7.org/fhir.

What It Is

Fast Healthcare Interoperability Resources — RESTful healthcare API standard with resource definitions, bundles, and search parameters.

Taxonomy

By FHIR version (R4, R5) · Resource index · Search parameters · Profiles

Top-Level Categories

Resources (Patient, Observation…)RESTful APISearchBundlesImplementation Guides

Master Catalog

Sub-Indexes & Guides

Related Registry Sources

fhirhealthcarehl7api