{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "The beginning of the atrial contraction",
  "system" : "http://dicom.nema.org/resources/ontology/DCM",
  "property" : [ ],
  "codesystem" : "edcf6828-b2c8-5028-b7f7-246cb8d5ac80",
  "concept_id" : "15b479e2-8ff7-598d-b277-2ebb38126ef1",
  "ancestors" : {
    "109045" : 0
  },
  "id" : "6f1ae7e6-4b43-4cfa-8caa-533fea4d3cb7",
  "code" : "109045",
  "display" : "Start of atrial contraction",
  "version" : "01"
}