{
  "resourceType" : "CodeSystem",
  "id" : "openEHR-EHR-OBSERVATION.blood-pressure.v2.at1010",
  "language" : "en",
  "text" : {
    "status" : "generated"
  },
  "url" : "http://hl7.org/fhir/test/openehr-test/CodeSystem/openEHR-EHR-OBSERVATION.blood-pressure.v2.at1010",
  "version" : "1.6.6",
  "name" : "DiastolicEndpointCS",
  "title" : "Diastolic endpoint",
  "status" : "active",
  "date" : "2025-06-14T02:33:58+00:00",
  "publisher" : "HL7 FHIR Product Director",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/fiwg"
    }]
  }],
  "description" : "CodeSystem for Record which Korotkoff sound is used for determining diastolic pressure using auscultative method.",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "code" : "001"
    }]
  }],
  "caseSensitive" : true,
  "content" : "complete",
  "concept" : [{
    "code" : "at1011",
    "display" : "Phase IV",
    "definition" : "The fourth Korotkoff sound is identified as an abrupt muffling of sounds."
  },
  {
    "code" : "at1012",
    "display" : "Phase V",
    "definition" : "The fifth Korotkoff sound is identified by absence of sounds as the cuff pressure drops below the diastolic blood pressure."
  }]
}