2007 ICD-9-CM Procedure 36.1 Bypass anastomosis for heart revascularization Surgical therapy of ischemic coronary artery disease achieved by grafting a section of saphenous vein, internal mammary artery, or other substitute between the aorta and the obstructed coronary artery distal to the obstructive lesion. 36.1 is a non-specific code that should not be used to specify a procedure View the full Volume 3 36.* hierarchy Note : Do not assign codes from series 00.40-00.43 with codes from series 36.10-36.19 Code also : cardiopulmonary bypass [extracorporeal circulation] [heart-lung machine] (39.61)