description: The human-readable descriptive name for the code or identifier system package_name: hl7.terminology.r4 derivation: constraint name: NamingSystemTitle type: Extension elements: extension: {index: 0} url: type: uri pattern: {type: Uri, value: 'http://terminology.hl7.org/StructureDefinition/ext-namingsystem-title'} index: 1 value: choices: [valueString] index: 3 valueString: {type: string, choiceOf: value, index: 4} package_version: 6.3.0 extensions: {} class: extension kind: complex-type url: http://terminology.hl7.org/StructureDefinition/ext-namingsystem-title base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.34