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.uv.extensions.r4b derivation: constraint name: PartnerPrefix 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: 5.3.0-ballot extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/humanname-partner-prefix base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.3.0-ballot required: [valueString, value]