description: Specifies the expansion parameters that should be used to expand ValueSets referenced from artifacts in the Library or ImplementationGuide.
package_name: hl7.fhir.uv.extensions.r3
derivation: constraint
name: ExpansionParameters
type: Extension
elements:
  url:
    type: uri
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/cqf-expansionParameters'}
    index: 0
  value:
    choices: [valueReference]
    index: 2
  valueReference:
    type: Reference
    choiceOf: value
    refers: ['http://hl7.org/fhir/StructureDefinition/Parameters']
    index: 3
package_version: 5.3.0-ballot-tc1
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/cqf-expansionParameters
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.3.0-ballot-tc1
required: [valueReference, value]