description: null
package_name: de.medizininformatikinitiative.kerndatensatz.studie
derivation: constraint
name: MII_EX_Studie_Backport_definitionReference
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/5.0/StructureDefinition/extension-EvidenceVariable.characteristic.definitionReference'}
    index: 1
  value:
    choices: [valueReference]
    index: 3
  valueReference:
    type: Reference
    choiceOf: value
    refers: ['http://hl7.org/fhir/StructureDefinition/Evidence', 'http://hl7.org/fhir/StructureDefinition/EvidenceVariable', 'http://hl7.org/fhir/StructureDefinition/Group']
    index: 4
package_version: 2026.0.0
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/5.0/StructureDefinition/extension-EvidenceVariable.characteristic.definitionReference
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 2026.0.0