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Chapter 9: Diseases of the circulatory system
I20-I25

Ischemic heart diseases

Optimize your clinical documentation with precise ICD-10 coding for Ischemic Heart Diseases (I20-I25). Enhance accuracy in diagnosing and billing by understanding the nuances of these codes, crucial for managing coronary artery disease, angina, and myocardial infarction. Ensure compliance and improve patient care with detailed insights into ischemic heart conditions.

About This Range
119+
Total codes
94+
Billable codes
25+
Non-billable codes
9
Chapters
Codes in this Range (119+)
Chapter 9: Diseases of the circulatory system Range: I00-I99
I20
Angina pectoris
I20.0
Unstable angina
Billable
I20.1
Angina pectoris with documented spasm
Billable
I20.2
Refractory angina pectoris
Billable
I20.8
Other forms of angina pectoris
I20.81
Angina pectoris with coronary microvascular dysfunction
Billable
I20.89
Other forms of angina pectoris
Billable
I20.9
Angina pectoris, unspecified
Billable
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
Billable
I21.02
ST elevation (STEMI) myocardial infarction involving left anterior descending coronary artery
Billable
I21.09
ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall
Billable
I21.1
ST elevation (STEMI) myocardial infarction of inferior wall
I21.11
ST elevation (STEMI) myocardial infarction involving right coronary artery
Billable
I21.19
ST elevation (STEMI) myocardial infarction involving other coronary artery of inferior wall
Billable
I21.2
ST elevation (STEMI) myocardial infarction of other sites
I21.21
ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery
Billable
I21.29
ST elevation (STEMI) myocardial infarction involving other sites
Billable
I21.3
ST elevation (STEMI) myocardial infarction of unspecified site
Billable
I21.4
Non-ST elevation (NSTEMI) myocardial infarction
Billable
I21.9
Acute myocardial infarction, unspecified
Billable
I21.A
Other type of myocardial infarction
I21.A1
Myocardial infarction type 2
Billable
I21.A9
Other myocardial infarction type
Billable
I21.B
Myocardial infarction with coronary microvascular dysfunction
Billable
I22
Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction
I22.0
Subsequent ST elevation (STEMI) myocardial infarction of anterior wall
Billable
I22.1
Subsequent ST elevation (STEMI) myocardial infarction of inferior wall
Billable
I22.2
Subsequent non-ST elevation (NSTEMI) myocardial infarction
Billable
I22.8
Subsequent ST elevation (STEMI) myocardial infarction of other sites
Billable
I22.9
Subsequent ST elevation (STEMI) myocardial infarction of unspecified site
Billable
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
Billable
I23.1
Atrial septal defect as current complication following acute myocardial infarction
Billable
I23.2
Ventricular septal defect as current complication following acute myocardial infarction
Billable
I23.3
Rupture of cardiac wall without hemopericardium as current complication following acute myocardial infarction
Billable
I23.4
Rupture of chordae tendineae as current complication following acute myocardial infarction
Billable
I23.5
Rupture of papillary muscle as current complication following acute myocardial infarction
Billable
I23.6
Thrombosis of atrium, auricular appendage, and ventricle as current complications following acute myocardial infarction
Billable
I23.7
Postinfarction angina
Billable
I23.8
Other current complications following acute myocardial infarction
Billable
I24
Other acute ischemic heart diseases
I24.0
Acute coronary thrombosis not resulting in myocardial infarction
Billable
I24.1
Dressler's syndrome
Billable
I24.8
Other forms of acute ischemic heart disease
I24.81
Acute coronary microvascular dysfunction
Billable
I24.89
Other forms of acute ischemic heart disease
Billable
I24.9
Acute ischemic heart disease, unspecified
Billable
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
Billable
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
Billable
I25.111
Atherosclerotic heart disease of native coronary artery with angina pectoris with documented spasm
Billable
I25.112
Atherosclerotic heart disease of native coronary artery with refractory angina pectoris
Billable
I25.118
Atherosclerotic heart disease of native coronary artery with other forms of angina pectoris
Billable
I25.119
Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris
Billable
I25.2
Old myocardial infarction
Billable
I25.3
Aneurysm of heart
Billable
I25.4
Coronary artery aneurysm and dissection
I25.41
Coronary artery aneurysm
Billable
I25.42
Coronary artery dissection
Billable
I25.5
Ischemic cardiomyopathy
Billable
I25.6
Silent myocardial ischemia
Billable
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
Billable
I25.701
Atherosclerosis of coronary artery bypass graft(s), unspecified, with angina pectoris with documented spasm
Billable
I25.702
Atherosclerosis of coronary artery bypass graft(s), unspecified, with refractory angina pectoris
Billable
I25.708
Atherosclerosis of coronary artery bypass graft(s), unspecified, with other forms of angina pectoris
Billable
I25.709
Atherosclerosis of coronary artery bypass graft(s), unspecified, with unspecified angina pectoris
Billable
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
Billable
I25.711
Atherosclerosis of autologous vein coronary artery bypass graft(s) with angina pectoris with documented spasm
Billable
I25.712
Atherosclerosis of autologous vein coronary artery bypass graft(s) with refractory angina pectoris
Billable
I25.718
Atherosclerosis of autologous vein coronary artery bypass graft(s) with other forms of angina pectoris
Billable
I25.719
Atherosclerosis of autologous vein coronary artery bypass graft(s) with unspecified angina pectoris
Billable
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
Billable
I25.721
Atherosclerosis of autologous artery coronary artery bypass graft(s) with angina pectoris with documented spasm
Billable
I25.722
Atherosclerosis of autologous artery coronary artery bypass graft(s) with refractory angina pectoris
Billable
I25.728
Atherosclerosis of autologous artery coronary artery bypass graft(s) with other forms of angina pectoris
Billable
I25.729
Atherosclerosis of autologous artery coronary artery bypass graft(s) with unspecified angina pectoris
Billable
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
Billable
I25.731
Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris with documented spasm
Billable
I25.732
Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with refractory angina pectoris
Billable
I25.738
Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with other forms of angina pectoris
Billable
I25.739
Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with unspecified angina pectoris
Billable
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
Billable
I25.751
Atherosclerosis of native coronary artery of transplanted heart with angina pectoris with documented spasm
Billable
I25.752
Atherosclerosis of native coronary artery of transplanted heart with refractory angina pectoris
Billable
I25.758
Atherosclerosis of native coronary artery of transplanted heart with other forms of angina pectoris
Billable
I25.759
Atherosclerosis of native coronary artery of transplanted heart with unspecified angina pectoris
Billable
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
Billable
I25.761
Atherosclerosis of bypass graft of coronary artery of transplanted heart with angina pectoris with documented spasm
Billable
I25.762
Atherosclerosis of bypass graft of coronary artery of transplanted heart with refractory angina pectoris
Billable
I25.768
Atherosclerosis of bypass graft of coronary artery of transplanted heart with other forms of angina pectoris
Billable
I25.769
Atherosclerosis of bypass graft of coronary artery of transplanted heart with unspecified angina pectoris
Billable
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
Billable
I25.791
Atherosclerosis of other coronary artery bypass graft(s) with angina pectoris with documented spasm
Billable
I25.792
Atherosclerosis of other coronary artery bypass graft(s) with refractory angina pectoris
Billable
I25.798
Atherosclerosis of other coronary artery bypass graft(s) with other forms of angina pectoris
Billable
I25.799
Atherosclerosis of other coronary artery bypass graft(s) with unspecified angina pectoris
Billable
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
Billable
I25.811
Atherosclerosis of native coronary artery of transplanted heart without angina pectoris
Billable
I25.812
Atherosclerosis of bypass graft of coronary artery of transplanted heart without angina pectoris
Billable
I25.82
Chronic total occlusion of coronary artery
Billable
I25.83
Coronary atherosclerosis due to lipid rich plaque
Billable
I25.84
Coronary atherosclerosis due to calcified coronary lesion
Billable
I25.85
Chronic coronary microvascular dysfunction
Billable
I25.89
Other forms of chronic ischemic heart disease
Billable
I25.9
Chronic ischemic heart disease, unspecified
Billable

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Frequently Asked Questions
What are the common symptoms of ischemic heart disease?

Common symptoms of ischemic heart disease include chest pain (angina), shortness of breath, fatigue, and palpitations. These symptoms occur due to reduced blood flow to the heart muscle.

How is ischemic heart disease diagnosed?

Ischemic heart disease is diagnosed using a combination of patient history, physical examination, electrocardiogram (ECG), stress testing, and imaging studies such as coronary angiography or CT scans to assess blood flow and blockages.

What treatment options are available for ischemic heart disease?

Treatment for ischemic heart disease includes lifestyle changes, medications like statins and beta-blockers, and procedures such as angioplasty or coronary artery bypass grafting (CABG) to restore blood flow to the heart.

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Ischemic heart diseases