description: If a person reference is needed in RelatedPerson.patient element, this optional extension should be used. package_name: hl7.fhir.no.basis derivation: constraint name: NoBasisRelatedpersonPersonReference type: Extension elements: url: pattern: {type: Uri, value: 'http://ehelse.no/fhir/StructureDefinition/no-basis-relatedperson-person-reference'} index: 0 value: short: Reference to person resource choices: [valueReference] index: 2 valueReference: type: Reference short: Reference to person resource choiceOf: value refers: ['http://hl7.no/fhir/StructureDefinition/no-basis-Person', 'http://hl7.org/fhir/StructureDefinition/Person'] index: 3 package_version: 2.0.16-beta class: extension kind: complex-type url: http://ehelse.no/fhir/StructureDefinition/no-basis-relatedperson-person-reference base: http://hl7.org/fhir/StructureDefinition/Extension version: 2.0.15