{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "A control where an item (or multiple items) can be selected from a list that is only displayed when the user is editing the field.",
  "system" : "http://hl7.org/fhir/questionnaire-item-control",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "parent",
    "_implicit" : true,
    "valueCode" : "question"
  } ],
  "codesystem" : "dd668c9a-ac6a-547e-999a-22efc69376aa",
  "concept_id" : "22eea48e-1209-5295-8944-f7d841ad4bca",
  "ancestors" : {
    "question" : 1,
    "drop-down" : 0
  },
  "id" : "d8c9b39d-e622-4017-8d2f-c5a632423d5d",
  "code" : "drop-down",
  "display" : "Drop down",
  "version" : "4.0.1"
}