Angina pectoris - I20

 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)

 Type 1 Excludes

• 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)

 Codes

• I20.0 - Unstable angina
• I20.1 - Angina pectoris with documented spasm
• I20.2 - Refractory angina pectoris
• I20.8 - Other forms of angina pectoris
• I20.81 - Angina pectoris with coronary microvascular dysfunction
• I20.89 - Other forms of angina pectoris
• I20.9 - Angina pectoris, unspecified