description: The prefix portion (e.g. voorvoegsel) of the family name that is derived from the person's own surname, as distinguished from any portion that is derived from the surname of the person's partner or spouse. package_name: hl7.fhir.r5.examples derivation: constraint name: own-prefix type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/humanname-own-prefix'} index: 1 value: choices: [valueString] index: 3 valueString: {type: string, choiceOf: value, index: 4} package_version: 5.0.0-snapshot3 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/humanname-own-prefix base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.0.0-snapshot3 required: [valueString, value]