{
  "package" : "hl7.fhir.uv.extensions.r4@5.2.0",
  "definition" : "The group is to be continuously visible at the top of the questionnaire.  Header must be a top-level item and must not be marked as repeating, but need not be the first item in the Questionnaire.  There can be at most one group of type 'header' in a Questionnaire.",
  "system" : "http://hl7.org/fhir/questionnaire-item-control",
  "property" : [ {
    "_uri" : "http://hl7.org/fhir/concept-properties#parent",
    "code" : "parent",
    "_implicit" : true,
    "valueCode" : "group"
  } ],
  "codesystem" : "ad0ac28b-f884-5f7a-b08d-9562d5843dfa",
  "concept_id" : "1c0a8bd3-9984-5865-b6c7-2d6efafffe38",
  "ancestors" : {
    "group" : 1,
    "header" : 0
  },
  "id" : "bd949679-b05d-40b5-98c4-8a74274b7c52",
  "code" : "header",
  "display" : "Header",
  "version" : "5.2.0"
}