description: Significant health events and conditions for a person related to the patient relevant in the context of care for the patient. package_name: hl7.fhir.uv.extensions.r4b derivation: constraint name: FamilyMemberHistory type: Extension elements: extension: {index: 0} url: pattern: {type: uri, value: 'http://hl7.org/fhir/StructureDefinition/DiagnosticReport-geneticsFamilyMemberHistory'} type: uri index: 1 value: choices: [valueReference] index: 3 valueReference: type: Reference choiceOf: value refers: ['http://hl7.org/fhir/StructureDefinition/FamilyMemberHistory'] index: 4 package_version: 5.3.0-ballot-tc1 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/DiagnosticReport-geneticsFamilyMemberHistory base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.3.0-ballot-tc1 required: [value, valueReference]