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| Fast Healthcare Interoperability Resources (FHIR) | |
|---|---|
| Name | Fast Healthcare Interoperability Resources (FHIR) |
| Developer | Health Level Seven International |
| Initial release | 2014 |
| Stable release | R4 (2019) and subsequent updates |
| License | HL7 Intellectual Property Policy |
| Website | HL7.org |
Fast Healthcare Interoperability Resources (FHIR) is a standards framework for exchanging electronic healthcare information, designed to enable interoperable health data exchange among diverse systems. It combines modern web technologies with healthcare-specific data models to support clinical, administrative, research, and public health workflows. FHIR is maintained by Health Level Seven International and is widely implemented by vendors, providers, regulators, and research institutions.
FHIR aims to simplify data exchange by defining modular "resources" that represent clinical concepts, administrative records, and infrastructure elements. The specification leverages RESTful APIs, Representational State Transfer, JSON, and XML to support client-server and messaging patterns used by vendors such as Epic Systems Corporation, Cerner Corporation, and Allscripts. Governance and conformance are overseen by standards bodies including Health Level Seven International, with engagement from regulators like the Office of the National Coordinator for Health Information Technology and initiatives such as Integrating the Healthcare Enterprise. Implementers include public agencies like the Centers for Medicare & Medicaid Services and research networks like the National Institutes of Health.
FHIR emerged from prior HL7 standards lineages rooted in the HL7 v2 messaging standard and the HL7 v3 Reference Information Model, with design influence from web standards championed by organizations such as the World Wide Web Consortium and companies like Google and Microsoft. The early specification was developed by HL7 work groups with input from multinational stakeholders including NHS England, Mayo Clinic, Kaiser Permanente, and vendors such as InterSystems. Key milestones include normative releases and the approval of base versions by HL7 steering committees and advisory panels, and collaborations with initiatives like SMART on FHIR and networks including Blue Button and Direct Project.
The FHIR architecture centers on a set of interoperable resources, a RESTful interface pattern, and extension mechanisms. Core components include the Resource layer, the API layer, the Conformance layer, and the Terminology layer, with tooling support from organizations such as IHE and vendors like Red Hat and IBM. FHIR APIs use web protocols influenced by OAuth 2.0 and OpenID Connect for authentication and authorization, often integrated into identity federations managed by institutions like UCSF or Johns Hopkins Medicine. The ecosystem includes reference implementations, test servers, and validation tools developed by communities including GitHub repositories and academic partners like Stanford University.
Resources are typed entities (for example, Patient, Observation, Encounter) that encapsulate structured clinical and administrative data; they can be composed, extended, and referenced across systems. The model interoperates with standard terminologies such as SNOMED CT, LOINC, ICD-10, and RxNorm to ensure semantic consistency across clinical data produced by institutions like Cleveland Clinic and manufacturers like Siemens Healthineers. Data type definitions include primitives, complex types, and backbone elements; the model supports profiles and value sets managed in collaboration with bodies like the National Library of Medicine and standards communities including OpenEHR.
Implementations commonly rely on profiles to constrain resources for specific clinical contexts, jurisdictional requirements, and workflow scenarios. Profiles are authored and published by national agencies such as NHS Digital and standards organizations including HL7 International, with regional implementations by entities like Veterans Health Administration and consortia such as CommonWell Health Alliance. Tooling ecosystems include terminology servers from vendors like Apelon and testing frameworks promoted by events such as FHIR Connectathons and conferences hosted by HIMSS. Integration patterns include SMART on FHIR apps, CDS Hooks integrations influenced by Clinical Decision Support initiatives, and exchange via healthcare information exchanges such as eHealth Exchange.
Security and privacy implementation in FHIR relies on web security standards such as TLS, OAuth 2.0, and OpenID Connect, and compliance frameworks from regulators like the U.S. Department of Health and Human Services and statutes including Health Insurance Portability and Accountability Act of 1996. Risk mitigation practices incorporate role-based access controls used at institutions such as Mount Sinai Health System, audit logging consistent with guidance from Centers for Disease Control and Prevention, and data de-identification strategies aligned with National Institutes of Health data sharing policies. Implementers coordinate with cybersecurity organizations including NIST and industry groups such as ISACA to manage threats and regulatory obligations.
FHIR adoption spans EHR vendors like Epic Systems Corporation and Cerner Corporation, payer organizations including UnitedHealth Group and Anthem, Inc., public health agencies such as CDC, and research consortia like All of Us Research Program. Use cases include clinical data exchange, patient access via portals championed by Apple Inc. and Google, population health reporting to agencies like WHO, and clinical research data capture in trials sponsored by National Institutes of Health. Challenges to interoperability include harmonizing profiles across jurisdictions, converging on terminology usage involving SNOMED CT and LOINC, addressing legacy integrations with HL7 v2 and DICOM, and governance issues managed by bodies such as IETF and HL7 International. Progress continues through community-driven initiatives, vendor collaboration, and policy levers from agencies like the Office of the National Coordinator for Health Information Technology.
Category:Health information technology