description: Indicates the mechanism used to compare versions to determine which is more current. package_name: hl7.fhir.uv.crmi derivation: constraint name: ArtifactVersionAlgorithm type: Extension elements: extension: {index: 0} url: type: uri pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/artifact-versionAlgorithm'} index: 1 value: choices: [valueString, valueCoding] index: 3 valueString: {type: string, choiceOf: value, index: 4} valueCoding: {type: Coding, choiceOf: value, index: 5} package_version: 1.0.0-ballot extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/artifact-versionAlgorithm base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0-ballot required: [valueCoding, valueString, value]