2006 ICD-9-CM Volume 1 Diagnosis Codes > Diseases Of The Circulatory System 390-459 > Ischemic Heart Disease 410-414 > 410 Acute myocardial infarction 411 Other acute and subacute forms of ischemic heart disease 412 Old myocardial infarction 413 Angina pectoris 414 Other forms of chronic ischemic heart disease