Angina pectoris Use additional code to identify:exposure to environmental tobacco smoke (Z77.22)history of tobacco dependence (Z87.891)occupational exposure to environmental tobacco smoke (Z57.31)tobacco dependence (F17.-)tobacco use (Z72.0)Excludes1angina pectoris with atherosclerotic heart disease of native coronary arteries (I25.1-)atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris (I25.7-)postinfarction angina (I23.7)