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I20 Angina pectoris
BackI20.0Unstable anginaCategoryI20.1Angina pectoris with documented spasmCategoryI20.2Refractory angina pectorisCategoryI20.8Other forms of angina pectorisCategory2 →I20.81Angina pectoris with coronary microvascular dysfunctionCategoryI20.89Other forms of angina pectorisCategoryI20.9Angina pectoris, unspecifiedCategory
Category
I20
Angina pectoris
EXCLUDES
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)
atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris (I25.7-)
postinfarction angina (I23.7)
CODING RULE
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)
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)
- Chapter
- IX · Diseases of the circulatory system
- Section
- I20-I25
- Valid from
Source
CMS ICD-10-CM Tabular List, edition FY2026.