fhir-types

Per-version FHIR types and terminology operation contracts.

Generated Rust types for the FHIR R4 (4.0.1), R4B (4.3.0), R5 (5.0.0), and R6 (6.0.0-ballot5) terminology surface: CodeSystem, ValueSet, ConceptMap, Parameters, OperationOutcome, CapabilityStatement, TerminologyCapabilities, Bundle, the datatypes and primitives they reach, a JSON codec, and typed request and response contracts for $lookup, $validate-code, $expand, $subsumes, and $translate per version, each with a runtime descriptor of the declared parameter set.

Every file is generated by fhir-codegen from the vendored HL7 packages and marked // @generated. To change the output, change the generator and regenerate; the crate is never hand-edited. The terminology ecosystem overlay (the HL7 terminology ecosystem IG requirements) is applied at generation and marked per parameter.

Where it sits

fhir-types is one crate of FerroTERM, a pure-Rust FHIR terminology server for SNOMED CT, LOINC, and other clinical code systems. The crates are published so other projects can reuse them; the API is pre-1.0 and moves with the FerroTERM release train. Documentation: https://docs.rs/fhir-types.

Licence

Apache License, Version 2.0 (LICENSE). This crate is one of the two the workspace publishes under Apache 2.0 rather than its Business Source License 1.1, so any Rust project can depend on it without a licence conversation. Clinical terminology content (SNOMED CT, LOINC, RxNorm, ICD, the Dutch national code systems) is licensed by its publisher and is never part of this crate.