description: The prefix portion (e.g. voorvoegsel) of the family name that is derived from the person's partner's surname, as distinguished from any portion that is derived from the surname of the person's own. package_name: hl7.fhir.r5.core derivation: constraint name: partner-prefix type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/humanname-partner-prefix'} index: 1 value: choices: [valueString] index: 3 valueString: {type: string, choiceOf: value, index: 4} package_version: 5.0.0-snapshot1 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/humanname-partner-prefix base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.0.0-snapshot1 required: [valueString, value]