description: Defines how concepts are processed into the expansion when it's for UI presentation. package_name: rs/hl7.fhir.core derivation: constraint name: expand-rules type: Extension elements: extension: {index: 0} url: type: uri pattern: {type: uri, value: 'http://hl7.org/fhir/StructureDefinition/valueset-expand-rules'} index: 1 valueCode: type: code binding: {strength: required, valueSet: 'http://hl7.org/fhir/ValueSet/expansion-processing-rule', bindingName: ExpansionProcessingRule} index: 2 package_version: 3.5.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/valueset-expand-rules base: http://hl7.org/fhir/StructureDefinition/Extension version: null