description: Reference to a formulary.
package_name: hl7.fhir.us.davinci-drug-formulary
derivation: constraint
name: FormularyReference
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-FormularyReference-extension'}
    index: 1
  value:
    choices: [valueReference]
    index: 3
  valueReference: {type: Reference, choiceOf: value, index: 4}
package_version: 1.2.0
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/us/davinci-drug-formulary/StructureDefinition/usdf-FormularyReference-extension
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 1.2.0
required: [valueReference, value]