FHIR Versions & Resources

fhir-zod supports all four major FHIR releases through explicit versioned entry points. Each release is independent — pick one for a given model flow and keep your types and schemas on that path.

Import paths

FHIR release	Version entry point	Resource entry points	HL7 spec
R5	fhir-zod/r5	fhir-zod/r5/<Resource>	HL7 R5
R4B	fhir-zod/r4b	fhir-zod/r4b/<Resource>	HL7 R4B
R4	fhir-zod/r4	fhir-zod/r4/<Resource>	HL7 R4
STU3	fhir-zod/stu3	fhir-zod/stu3/<Resource>	HL7 STU3

Import concrete resources from their resource entry point:

import { PatientSchema, type Patient } from "fhir-zod/r4/Patient";

Import shared datatypes from the version entry point when needed:

import { HumanNameSchema, type HumanName } from "fhir-zod/r4";

Don't mix releases in a single flow unless you're explicitly translating between them:

import type { Patient as R4Patient } from "fhir-zod/r4/Patient";
import type { Patient as R5Patient } from "fhir-zod/r5/Patient";

Resource inventory

Browse generated core resources by release. Each resource links back to the canonical HL7 docs for semantics beyond the package shape.

• R5
• R4B
• R4
• STU3

Support status

R5, R4B, R4, and STU3 are fully supported. The package is pre-release, so package shape and generated output may change between versions. For the full semantic meaning of any resource, refer to the official HL7 FHIR specification for that release.