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Also known as: Fast Healthcare Interoperability Resources
A standard for exchanging healthcare information electronically using RESTful APIs and resources.
DESCRIPTION
FHIR defines modular resources for clinical data and supports RESTful APIs, JSON, and XML. It promotes interoperability across EHRs, apps, and healthcare systems. Profiles and Implementation Guides constrain resources for national programs like US Core. Security relies on OAuth2 and SMART on FHIR patterns. Terminology bindings reference code systems such as SNOMED CT and LOINC. FHIR enables patient access, clinical workflows, and analytics pipelines in healthcare.
ALTERNATIVE DEFINITIONS
HL7
FHIR is a standard for health care data exchange, published by HL7.
Concise definition by the standards organization emphasizing data exchange focus.
ONC (U.S. Office of the National Coordinator for Health IT)
FHIR is a standard for data formats and elements and an API for exchanging electronic health records.
Highlights both resource formats and API aspects for EHR interoperability.
NHS England
FHIR (Fast Healthcare Interoperability Resources) is an international standard for exchanging healthcare information electronically.
Emphasizes international scope and electronic exchange within national health services.
RELATED TERMS
Health Level Seven International SMART on FHIR Electronic Health Record REST API JSON Terminology Services OAuth 2.0 US Core Clinical Data Interoperability
COMPETING TERMS
HL7 v2 Confirmatory Data Analysis
KNOWLEDGE AREAS
Data Integration & Interoperability Data Management Data Privacy & Compliance Domain & Business Context Semantic & Knowledge Modeling
TARGET AUDIENCE
Data Architect Solution Architect Software Developer Data Engineer AI Engineer Data Privacy Officer Chief Information Security Officer
EXTERNAL SOURCES
- Wikipedia - FHIR
- HL7 - Canonical FHIR specification
- ONC Interoperability Standards Advisory - Regulatory guidance on FHIR
- SMART Health IT - App framework on FHIR
TOP QUESTIONS
What is FHIR in healthcare interoperability?
FHIR is an HL7 standard defining resources and APIs for exchanging clinical data, enabling interoperable apps and EHR integrations.
Category: Overview
How does FHIR support security?
FHIR commonly uses OAuth2 and SMART on FHIR for secure authorization and access control to patient data.
Category: Requirements
What are FHIR profiles?
Profiles constrain resources to specific use cases, enabling consistent implementations like US Core and national guidelines.
Category: Example
How does FHIR relate to HL7 v2 and CDA?
FHIR modernizes exchange with REST and flexible resources; HL7 v2 and CDA are older messaging and document standards.
Category: Alternatives
What is a common mistake with FHIR implementations?
Ignoring conformance testing and terminology bindings leads to incompatible APIs and poor interoperability across systems.
Category: Mistakes
How is FHIR used in patient access?
Apps query FHIR APIs for patient records, medications, and observations, supporting access, portability, and digital services.
Category: Example
Is FHIR relevant for AI in healthcare?
Yes, it standardizes data ingestion for ML pipelines and supports provenance and semantics for safer AI applications.
Category: Relevancy
What’s the biggest misunderstanding about FHIR?
That FHIR alone guarantees interoperability; consistent profiles, versions, and testing are essential for real-world compatibility.
Category: Misunderstanding
Where to start with FHIR?
Study the HL7 spec, select relevant Implementation Guides, and build API endpoints with conformance testing and security configured.
Category: Requirements