description: An additional code that may be used to represent the concept. package_name: hl7.fhir.core derivation: constraint name: alternate type: Extension elements: extension: type: Extension short: Code that represents the concept index: 0 slicing: slices: code: match: {} schema: type: Extension short: Code that represents the concept _required: true index: 0 extensions: {} elements: extension: {index: 1} url: type: uri pattern: {type: Uri, value: code} index: 2 valueCode: {type: code, index: 3} use: match: {} schema: short: Expected use of the code type: Extension _required: true index: 4 extensions: {} elements: extension: {index: 5} url: type: uri pattern: {type: Uri, value: use} index: 6 valueCoding: {type: Coding, index: 7} url: type: uri pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/codesystem-alternate'} index: 8 value: choices: [] index: 10 package_version: 3.2.0 extensions: code: url: null type: Extension short: Code that represents the concept _required: true index: 0 extensions: {} elements: extension: {index: 1} url: type: uri pattern: {type: Uri, value: code} index: 2 valueCode: {type: code, index: 3} use: url: null short: Expected use of the code type: Extension _required: true index: 4 extensions: {} elements: extension: {index: 5} url: type: uri pattern: {type: Uri, value: use} index: 6 valueCoding: {type: Coding, index: 7} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/codesystem-alternate base: http://hl7.org/fhir/StructureDefinition/Extension version: null required: [extension]