description: Whether this is intended to be used with an extensible binding or not. package_name: hl7.fhir.core derivation: constraint name: extensible type: Extension elements: extension: {index: 0} url: type: uri pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/valueset-extensible'} index: 1 valueBoolean: {type: boolean, index: 2} package_version: 3.5.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/valueset-extensible base: http://hl7.org/fhir/StructureDefinition/Extension version: null