http://hl7.org/fhir/StructureDefinition/questionnaire-referenceFilter|5.2.0

description: 'Identifies a filter to apply when looking up candidate answers for the question.  DEPRECATED: This extension has been replaced by the Structured Data Capture candidateExpression extension.'
derivation: constraint
name: ReferenceFilter
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/questionnaire-referenceFilter'}
    index: 1
  value:
    choices: []
    index: 3
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/questionnaire-referenceFilter
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.2.0
required: [value]