Category I20

Angina pectoris

Clinical Classification Guidelines

Specific Diagnosis Codes

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