description: 'R4B: `RequestGroup.meta` additional types (Meta) additional types from child elements (lastUpdated, profile, security, source, tag, versionId)' package_name: hl7.fhir.uv.xver-r4b.r3 derivation: constraint name: ExtensionRequestGroup_Meta type: Extension elements: url: base: {max: '1', min: 1, path: Extension.url} pattern: {type: Uri, value: 'http://hl7.org/fhir/4.3/StructureDefinition/extension-RequestGroup.meta'} index: 0 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} short: Metadata about the resource choices: [valueMeta] index: 2 valueMeta: short: Metadata about the resource type: Meta base: {max: '1', min: 0, path: 'Extension.value[x]'} choiceOf: value index: 3 package_version: 0.1.0 class: extension kind: complex-type url: http://hl7.org/fhir/4.3/StructureDefinition/extension-RequestGroup.meta base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.1.0 required: [url]