description: Allows a given data requirement to be identified as \"selective\", meaning that it can be used as an additive criteria to filter a population. A selective data requirement is guaranteed to define a subset (not necessarily proper) of the initial population of an artifact. If multiple data requirements are marked selective, they all apply (i.e. AND semantics).
package_name: hl7.fhir.uv.crmi
derivation: constraint
name: IsSelective
type: Extension
elements:
  url:
    type: uri
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/cqf-isSelective'}
    index: 0
  value:
    choices: [valueBoolean]
    index: 2
  valueBoolean: {type: boolean, choiceOf: value, index: 3}
package_version: 1.0.0-ballot
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/cqf-isSelective
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 1.0.0-ballot