description: This cross-version extension represents ElementDefinition.slicing.discriminator from http://hl7.org/fhir/StructureDefinition/ElementDefinition|1.0.2 for use in FHIR R4. package_name: rs/hl7.fhir.uv.xver derivation: constraint name: ext_R2_ElementDefinition_sl_discriminator type: Extension elements: value: base: {path: 'Extension.value[x]'} short: Element values that used to distinguish the slices choices: [valueString] index: 1 valueString: base: {path: 'Extension.value[x]'} type: string short: Element values that used to distinguish the slices choiceOf: value index: 2 url: pattern: {type: uri, value: 'http://hl7.org/fhir/1.0/StructureDefinition/extension-ElementDefinition.slicing.discriminator'} type: uri index: 3 package_version: r2.r4-0.0.1-snapshot-1 class: extension kind: complex-type url: http://hl7.org/fhir/1.0/StructureDefinition/extension-ElementDefinition.slicing.discriminator base: http://hl7.org/fhir/StructureDefinition/Extension version: 0.0.1-snapshot-1 required: [url]