I20 - Angina pectoris
Use Additional Code:
-code to identify:
-exposure to environmental tobacco smoke Z77.22)
-history of tobacco use Z87.891)
-occupational exposure to environmental tobacco smoke Z57.31)
-tobacco dependence (F17.-)
-tobacco use Z72.0)
Excludes 1:
-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