FHIR Meta Data Type (R4)

Meta holds metadata about a resource instance: versionId, lastUpdated, the profiles it claims conformance to, security labels and tags. Element table, example JSON and FHIRPath for FHIR R4.

FHIR Meta Data Type (R4) — part of the free FHIR Toolbox library.
Runs entirely in your browser: your FHIR data is never uploaded to a server.

Overview

Meta holds metadata about a resource instance: versionId, lastUpdated, the profiles it claims conformance to, security labels and tags. It is set by servers and can be set by clients.

Elements

Element	Type	Cardinality	Description
Meta.versionId	id	0..1	Version specific identifier
Meta.lastUpdated	instant	0..1	When the resource version last changed
Meta.source	uri	0..1	Identifies where the resource comes from
Meta.profile	canonical	0..*	Profiles this resource claims to conform to
Meta.security	Coding	0..*	Security Labels applied to this resource
Meta.tag	Coding	0..*	Tags applied to this resource

Example JSON (R4)

{
  "versionId": "1",
  "lastUpdated": "2024-05-01T12:00:00Z",
  "profile": [
    "http://hl7.org/fhir/us/core/StructureDefinition/us-core-patient"
  ]
}

FHIRPath

Patient.meta.profile — Declared profiles
Patient.meta.lastUpdated — Last update time

FHIR Toolbox is a free, privacy-first collection of HL7 FHIR utilities by Omindra Labs. Every tool performs zero-server processing — your health data never leaves your device.