{
  "package" : "hl7.fhir.r4.core@4.0.1",
  "definition" : "Mitral valve area computed from flow and pressure gradient: Mitral valve Area = Flow / 38.0 * 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" : "fb40efcc-d10c-5e17-bbdc-ecd78fbd483f",
  "ancestors" : {
    "122263" : 0
  },
  "id" : "1c30639c-c6bd-498f-a5b4-2c670e02db2a",
  "code" : "122263",
  "display" : "MVA = Flow / 38.0 * sqrt(Gradient[mmHg])",
  "version" : "01"
}