description: A link to one to more patient records for the relation. package_name: rs/hl7.fhir.core derivation: constraint name: Link to patient record type: null elements: extension: {name: extension, index: 0} url: type: uri pattern: {type: uri, value: 'http://hl7.org/fhir/StructureDefinition/familymemberhistory-patient-record'} index: 1 value: choices: [valueReference] index: 3 valueReference: {type: Reference, choiceOf: value, index: 4} 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]