description: Identifies the relative order in which concepts within the value set should be presented to a user. package_name: rs/hl7.fhir.core derivation: constraint name: Appearance order for user selection type: null elements: extension: {name: extension, index: 0} url: type: uri pattern: {type: uri, value: 'http://hl7.org/fhir/StructureDefinition/codesystem-conceptOrder'} index: 1 value: choices: [valueInteger] index: 3 valueInteger: {type: integer, choiceOf: value, index: 4} package_version: 1.4.0 extensions: {} class: datatype kind: datatype url: http://hl7.org/fhir/StructureDefinition/codesystem-conceptOrder base: http://hl7.org/fhir/StructureDefinition/Extension version: null required: [value, valueInteger]