{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Cardiac valve area computed from flow and pressure gradient: Area = Flow / 44.5 * sqrt(Gradient[mmHg]) [Gorlin and Gorlin, Am Heart J, 1951]",
  "system" : "http://dicom.nema.org/resources/ontology/DCM",
  "property" : [ ],
  "codesystem" : "edcf6828-b2c8-5028-b7f7-246cb8d5ac80",
  "concept_id" : "c08b05d1-8129-5981-ab43-6427dd8d45b1",
  "ancestors" : {
    "122262" : 0
  },
  "id" : "462b2327-d543-46af-84e8-6d1ef12b0899",
  "code" : "122262",
  "display" : "Area = Flow / 44.5 * sqrt(Gradient[mmHg])",
  "version" : "01"
}