I20: Angina pectoris useAdditionalCode 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) excludes1 angina 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) |
| I20.0: Unstable angina |
| I20.1: Angina pectoris with documented spasm |
| I20.8: Other forms of angina pectoris |
| I20.9: Angina pectoris, unspecified |