I20
Angina pectoris
Non-billableCategory
Chapter: 9. Diseases of the circulatory system
Section: I20-I25 - Ischemic heart diseases
Coding Guidelines
Excludes1 (Mutually Exclusive)
These codes should never be used together with I20
- 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-)
- I23.7 - postinfarction angina (I23.7)
Use Additional Code
- 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)
