{
  "description": "Stenosis of the Left Main Artery",
  "_filename": "CodeSystem-CorHealth119LeftMainArteryStenosisCS.json",
  "package_name": "ca.on.oh.corhealth",
  "date": null,
  "publisher": null,
  "content": "complete",
  "name": "CorHealth119LeftMainArteryStenosisCS",
  "type": null,
  "experimental": "false",
  "resourceType": "CodeSystem",
  "title": "Stenosis of the Left Main Artery",
  "package_version": "0.2.0-beta",
  "status": "active",
  "id": "857fa2d3-24f9-4c91-9e28-090f11dbe4b1",
  "kind": null,
  "count": 5,
  "url": "https://corhealth-ontario.ca/fhir/CodeSystem/CorHealth119LeftMainArteryStenosisCS",
  "concept": [ {
    "code": "G",
    "display": "50% to 99%",
    "definition": "Significant flow-limiting stenosis (≥50% occlusion) of the native left main artery is documented in the current coronary angiogram."
  }, {
    "code": "W",
    "display": "100% without Chronic Total Occlusion",
    "definition": "100% stenosis of the native left main artery with thrombolysis in myocardial infarction (TIMI) antegrade flow grade 0 is documented in the current coronary angiogram."
  }, {
    "code": "C",
    "display": "100% with Chronic Total Occlusion",
    "definition": "100% stenosis of the native left main artery with TIMI antegrade flow grade 0, with angiographically proven or estimated duration ≥3 months based on perfusion scanning or symptoms is documented in the current coronary angiogram."
  }, {
    "code": "Z",
    "display": "100% Chronic Total Occlusion Unknown",
    "definition": "100% stenosis of the native left main artery with TIMI antegrade flow grade 0 of unknown duration is documented in the current coronary angiogram."
  }, {
    "code": "L",
    "display": "<50%",
    "definition": "Non-significant flow-limiting stenosis (<50% occlusion) or no stenosis of the native left main artery is documented in the current coronary angiogram."
  } ],
  "caseSensitive": false,
  "version": null
}