{
  "description": "Stenosis of the Proximal Left Anterior Descending Artery",
  "_filename": "CodeSystem-CorHealth120StenosisProximalLeftAnteriorDescendingArteryCS.json",
  "package_name": "ca.on.oh.corhealth",
  "date": null,
  "publisher": null,
  "content": "complete",
  "name": "CorHealth120StenosisProximalLeftAnteriorDescendingArteryCS",
  "type": null,
  "experimental": "false",
  "resourceType": "CodeSystem",
  "title": "Stenosis of the Proximal Left Anterior Descending Artery",
  "package_version": "0.2.0-beta",
  "status": "active",
  "id": "261fc435-f0e7-4950-b1df-142a108d04e0",
  "kind": null,
  "count": 5,
  "url": "https://corhealth-ontario.ca/fhir/CodeSystem/CorHealth120StenosisProximalLeftAnteriorDescendingArteryCS",
  "concept": [ {
    "code": "G",
    "display": "70% to 99%",
    "definition": "Significant flow-limiting stenosis (≥70% occlusion) of the native proximal LAD artery is documented in the current coronary angiogram."
  }, {
    "code": "W",
    "display": "100% without Chronic Total Occlusion",
    "definition": "100% stenosis of the native proximal LAD 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 proximal LAD 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 proximal LAD artery with TIMI antegrade flow grade 0 of unknown duration is documented in the current coronary angiogram."
  }, {
    "code": "L",
    "display": "<70%",
    "definition": "Non-significant flow-limiting stenosis (<70% occlusion) or no stenosis of the native proximal LAD artery is documented in the current coronary angiogram."
  } ],
  "caseSensitive": false,
  "version": null
}