ICD-10-CM Codes I00-I99 I20-I25

Section I20-I25 Ischemic heart diseases I20-I25

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( I10-I1A )

( I26-I28 )

Code Also for I20-I25:

the presence of hypertension (I10-I1A)

Code List:

I20

Code hierarchy

I20 Angina pectoris
- 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

Angina pectoris

I21

Code hierarchy

I21 Acute myocardial infarction
- I21.0 ST elevation (STEMI) myocardial infarction of anterior wall
  - I21.01 ST elevation (STEMI) myocardial infarction involving left main coronary artery
  - I21.02 ST elevation (STEMI) myocardial infarction involving left anterior descending coronary artery
  - I21.09 ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall
- I21.1 ST elevation (STEMI) myocardial infarction of inferior wall
  - I21.11 ST elevation (STEMI) myocardial infarction involving right coronary artery
  - I21.19 ST elevation (STEMI) myocardial infarction involving other coronary artery of inferior wall
- I21.2 ST elevation (STEMI) myocardial infarction of other sites
  - I21.21 ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery
  - I21.29 ST elevation (STEMI) myocardial infarction involving other sites
- I21.3 ST elevation (STEMI) myocardial infarction of unspecified site
- I21.4 Non-ST elevation (NSTEMI) myocardial infarction
- I21.9 Acute myocardial infarction, unspecified
- I21.A Other type of myocardial infarction
  - I21.A1 Myocardial infarction type 2
  - I21.A9 Other myocardial infarction type
- I21.B Myocardial infarction with coronary microvascular dysfunction

Acute myocardial infarction

I22

Code hierarchy

I22 Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction
- I22.0 Subsequent ST elevation (STEMI) myocardial infarction of anterior wall
- I22.1 Subsequent ST elevation (STEMI) myocardial infarction of inferior wall
- I22.2 Subsequent non-ST elevation (NSTEMI) myocardial infarction
- I22.8 Subsequent ST elevation (STEMI) myocardial infarction of other sites
- I22.9 Subsequent ST elevation (STEMI) myocardial infarction of unspecified site

Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction

I23

Code hierarchy

I23 Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period)
- I23.0 Hemopericardium as current complication following acute myocardial infarction
- I23.1 Atrial septal defect as current complication following acute myocardial infarction
- I23.2 Ventricular septal defect as current complication following acute myocardial infarction
- I23.3 Rupture of cardiac wall without hemopericardium as current complication following acute myocardial infarction
- I23.4 Rupture of chordae tendineae as current complication following acute myocardial infarction
- I23.5 Rupture of papillary muscle as current complication following acute myocardial infarction
- I23.6 Thrombosis of atrium, auricular appendage, and ventricle as current complications following acute myocardial infarction
- I23.7 Postinfarction angina
- I23.8 Other current complications following acute myocardial infarction

Certain current complications following ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction (within the 28 day period)

I24

Code hierarchy

I24 Other acute ischemic heart diseases
- I24.0 Acute coronary thrombosis not resulting in myocardial infarction
- I24.1 Dressler's syndrome
- I24.8 Other forms of acute ischemic heart disease
  - I24.81 Acute coronary microvascular dysfunction
  - I24.89 Other forms of acute ischemic heart disease
- I24.9 Acute ischemic heart disease, unspecified

Other acute ischemic heart diseases

I25

Code hierarchy

I25 Chronic ischemic heart disease
- I25.1 Atherosclerotic heart disease of native coronary artery
  - I25.10 Atherosclerotic heart disease of native coronary artery without angina pectoris
  - I25.11 Atherosclerotic heart disease of native coronary artery with angina pectoris
    - I25.110 Atherosclerotic heart disease of native coronary artery with unstable angina pectoris
    - I25.111 Atherosclerotic heart disease of native coronary artery with angina pectoris with documented spasm
    - I25.112 Atherosclerotic heart disease of native coronary artery with refractory angina pectoris
    - I25.118 Atherosclerotic heart disease of native coronary artery with other forms of angina pectoris
    - I25.119 Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris
- I25.2 Old myocardial infarction
- I25.3 Aneurysm of heart
- I25.4 Coronary artery aneurysm and dissection
  - I25.41 Coronary artery aneurysm
  - I25.42 Coronary artery dissection
- I25.5 Ischemic cardiomyopathy
- I25.6 Silent myocardial ischemia
- I25.7 Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris
  - I25.70 Atherosclerosis of coronary artery bypass graft(s), unspecified, with angina pectoris
    - I25.700 Atherosclerosis of coronary artery bypass graft(s), unspecified, with unstable angina pectoris
    - I25.701 Atherosclerosis of coronary artery bypass graft(s), unspecified, with angina pectoris with documented spasm
    - I25.702 Atherosclerosis of coronary artery bypass graft(s), unspecified, with refractory angina pectoris
    - I25.708 Atherosclerosis of coronary artery bypass graft(s), unspecified, with other forms of angina pectoris
    - I25.709 Atherosclerosis of coronary artery bypass graft(s), unspecified, with unspecified angina pectoris
  - I25.71 Atherosclerosis of autologous vein coronary artery bypass graft(s) with angina pectoris
    - I25.710 Atherosclerosis of autologous vein coronary artery bypass graft(s) with unstable angina pectoris
    - I25.711 Atherosclerosis of autologous vein coronary artery bypass graft(s) with angina pectoris with documented spasm
    - I25.712 Atherosclerosis of autologous vein coronary artery bypass graft(s) with refractory angina pectoris
    - I25.718 Atherosclerosis of autologous vein coronary artery bypass graft(s) with other forms of angina pectoris
    - I25.719 Atherosclerosis of autologous vein coronary artery bypass graft(s) with unspecified angina pectoris
  - I25.72 Atherosclerosis of autologous artery coronary artery bypass graft(s) with angina pectoris
    - I25.720 Atherosclerosis of autologous artery coronary artery bypass graft(s) with unstable angina pectoris
    - I25.721 Atherosclerosis of autologous artery coronary artery bypass graft(s) with angina pectoris with documented spasm
    - I25.722 Atherosclerosis of autologous artery coronary artery bypass graft(s) with refractory angina pectoris
    - I25.728 Atherosclerosis of autologous artery coronary artery bypass graft(s) with other forms of angina pectoris
    - I25.729 Atherosclerosis of autologous artery coronary artery bypass graft(s) with unspecified angina pectoris
  - I25.73 Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris
    - I25.730 Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with unstable angina pectoris
    - I25.731 Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris with documented spasm
    - I25.732 Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with refractory angina pectoris
    - I25.738 Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with other forms of angina pectoris
    - I25.739 Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with unspecified angina pectoris
  - I25.75 Atherosclerosis of native coronary artery of transplanted heart with angina pectoris
    - I25.750 Atherosclerosis of native coronary artery of transplanted heart with unstable angina
    - I25.751 Atherosclerosis of native coronary artery of transplanted heart with angina pectoris with documented spasm
    - I25.752 Atherosclerosis of native coronary artery of transplanted heart with refractory angina pectoris
    - I25.758 Atherosclerosis of native coronary artery of transplanted heart with other forms of angina pectoris
    - I25.759 Atherosclerosis of native coronary artery of transplanted heart with unspecified angina pectoris
  - I25.76 Atherosclerosis of bypass graft of coronary artery of transplanted heart with angina pectoris
    - I25.760 Atherosclerosis of bypass graft of coronary artery of transplanted heart with unstable angina
    - I25.761 Atherosclerosis of bypass graft of coronary artery of transplanted heart with angina pectoris with documented spasm
    - I25.762 Atherosclerosis of bypass graft of coronary artery of transplanted heart with refractory angina pectoris
    - I25.768 Atherosclerosis of bypass graft of coronary artery of transplanted heart with other forms of angina pectoris
    - I25.769 Atherosclerosis of bypass graft of coronary artery of transplanted heart with unspecified angina pectoris
  - I25.79 Atherosclerosis of other coronary artery bypass graft(s) with angina pectoris
    - I25.790 Atherosclerosis of other coronary artery bypass graft(s) with unstable angina pectoris
    - I25.791 Atherosclerosis of other coronary artery bypass graft(s) with angina pectoris with documented spasm
    - I25.792 Atherosclerosis of other coronary artery bypass graft(s) with refractory angina pectoris
    - I25.798 Atherosclerosis of other coronary artery bypass graft(s) with other forms of angina pectoris
    - I25.799 Atherosclerosis of other coronary artery bypass graft(s) with unspecified angina pectoris
- I25.8 Other forms of chronic ischemic heart disease
  - I25.81 Atherosclerosis of other coronary vessels without angina pectoris
    - I25.810 Atherosclerosis of coronary artery bypass graft(s) without angina pectoris
    - I25.811 Atherosclerosis of native coronary artery of transplanted heart without angina pectoris
    - I25.812 Atherosclerosis of bypass graft of coronary artery of transplanted heart without angina pectoris
  - I25.82 Chronic total occlusion of coronary artery
  - I25.83 Coronary atherosclerosis due to lipid rich plaque
  - I25.84 Coronary atherosclerosis due to calcified coronary lesion
  - I25.85 Chronic coronary microvascular dysfunction
  - I25.89 Other forms of chronic ischemic heart disease
- I25.9 Chronic ischemic heart disease, unspecified

Chronic ischemic heart disease