- COD refers to Cause of Death as recorded by the medical examiner. OD is accidental or suicidal drug overdose. CAD is coronary artery disease. Lung refers to scores for pathologic lung findings: 1 = normal lung, 2 = edema only, 3 = pneumonia, 4 = diffuse alveolar damage and 5 = vascular thrombi. Heart refers to scores of cardiac pathologic findings: 1 = normal heart, 2 = hypertensive cardiac disease, 3 = CAD, 4 = other cardiac causes including aortic stenosis, alcoholic cardiomyopathy and fatty infiltration. Cardiac and lung exams were not done on all cases
