description: This cross-version extension represents ValueSet.expansion.next from http://hl7.org/fhir/StructureDefinition/ValueSet|5.0.0 for use in FHIR R4B. package_name: rs/hl7.fhir.uv.xver derivation: constraint name: ext_R5_ValueSet_ex_next type: Extension elements: value: base: {path: 'Extension.value[x]'} short: Opaque urls for paging through expansion results choices: [valueUri] index: 1 valueUri: base: {path: 'Extension.value[x]'} type: uri short: Opaque urls for paging through expansion results choiceOf: value index: 2 url: pattern: {type: uri, value: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-ValueSet.expansion.next'} type: uri index: 3 package_version: r5.r4b-0.0.1-snapshot-1 class: extension kind: complex-type url: http://hl7.org/fhir/5.0/StructureDefinition/extension-ValueSet.expansion.next base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]