Specification Browser
Browse HL7 v2, FHIR, and CDA specifications
Navigate the complete HL7 standard family, from v2.1 segments to FHIR R5 resources to CDA templates.
V2 Specification Browser
Browse segments, data types, tables, message structures, and documentation across 14 HL7 v2 versions (2.1–2.9)
FHIR Browser
Explore FHIR R4 and R5 resources, value sets, code systems, operations, and 160+ implementation guides
CDA & C-CDA Browser
Navigate C-CDA templates, C-CDA on FHIR mappings, and CDA-specific value sets
A version overview page, with every section of the standard one click away.
Select any field in the parser, then use the View links in its details panel (such as View on the Data Element tab or View in Spec Browser on the Table tab) to open the full specification definition in the browser.
Related Pages
V2 Specification Browser
Browse HL7 v2 versions 2.1 through 2.9
FHIR Browser
Browse FHIR R4 and R5 core resources and implementation guides
CDA & C-CDA Browser
Browse HL7 v3 Clinical Document Architecture and Consolidated CDA
Global Resources
Cross-standard references that span every HL7 version
Annotations
Errata, corrections, and ballot comments published against a version
Version Differences
What changed between an HL7 v2 version and the one before it