description: A link to one to more patient records for the relation. package_name: rs/hl7.fhir.r2b.examples derivation: constraint name: Link to patient record type: null elements: extension: isModifier: false name: extension mustSupport: false maxLength: 0 base: {max: '0', min: 0, path: Extension.extension} isSummary: false index: 0 url: isModifier: false pattern: {type: uri, value: 'http://hl7.org/fhir/StructureDefinition/familymemberhistory-patient-record'} type: uri mustSupport: false maxLength: 0 base: {max: '1', min: 0, path: Extension.url} isSummary: false index: 1 value: base: {max: '1', min: 0, path: 'Extension.value[x]'} isSummary: false maxLength: 0 isModifier: false mustSupport: false choices: [valueReference] index: 3 valueReference: isModifier: false index: 4 type: Reference mustSupport: false maxLength: 0 base: {max: '1', min: 0, path: 'Extension.value[x]'} choiceOf: value isSummary: false package_version: 1.4.0 extensions: {} class: datatype kind: datatype url: http://hl7.org/fhir/StructureDefinition/familymemberhistory-patient-record base: http://hl7.org/fhir/StructureDefinition/Extension version: null required: [value, valueReference]