ICD-10-CM category
I25: Chronic ischemic heart disease
Codes under I25 (Chronic ischemic heart disease). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| I25.1 | Atherosclerotic heart disease of native coronary artery | — |
| I25.1 | Atherosclerotic heart disease of native coronary artery | — |
| I25.2 | Old myocardial infarction | ✓ |
| I25.2 | Old myocardial infarction | ✓ |
| I25.3 | Aneurysm of heart | ✓ |
| I25.3 | Aneurysm of heart | ✓ |
| I25.4 | Coronary artery aneurysm and dissection | — |
| I25.4 | Coronary artery aneurysm and dissection | — |
| I25.5 | Ischemic cardiomyopathy | ✓ |
| I25.5 | Ischemic cardiomyopathy | ✓ |
| I25.6 | Silent myocardial ischemia | ✓ |
| I25.6 | Silent myocardial ischemia | ✓ |
| I25.7 | Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris | — |
| I25.7 | Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris | — |
| I25.8 | Other forms of chronic ischemic heart disease | — |
| I25.8 | Other forms of chronic ischemic heart disease | — |
| I25.9 | Chronic ischemic heart disease, unspecified | ✓ |
| I25.9 | Chronic ischemic heart disease, unspecified | ✓ |
| I25.10 | Atherosclerotic heart disease of native coronary artery without angina pectoris | ✓ |
| I25.10 | Atherosclerotic heart disease of native coronary artery without angina pectoris | ✓ |
| I25.11 | Atherosclerotic heart disease of native coronary artery with angina pectoris | — |
| I25.11 | Atherosclerotic heart disease of native coronary artery with angina pectoris | — |
| I25.41 | Coronary artery aneurysm | ✓ |
| I25.41 | Coronary artery aneurysm | ✓ |
| I25.42 | Coronary artery dissection | ✓ |
| I25.42 | Coronary artery dissection | ✓ |
| I25.70 | Atherosclerosis of coronary artery bypass graft(s), unspecified, with angina pectoris | — |
| I25.70 | Atherosclerosis of coronary artery bypass graft(s), unspecified, with angina pectoris | — |
| I25.71 | Atherosclerosis of autologous vein coronary artery bypass graft(s) with angina pectoris | — |
| I25.71 | Atherosclerosis of autologous vein coronary artery bypass graft(s) with angina pectoris | — |
| I25.72 | Atherosclerosis of autologous artery coronary artery bypass graft(s) with angina pectoris | — |
| I25.72 | Atherosclerosis of autologous artery coronary artery bypass graft(s) with angina pectoris | — |
| I25.73 | Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris | — |
| I25.73 | Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris | — |
| I25.75 | Atherosclerosis of native coronary artery of transplanted heart with angina pectoris | — |
| I25.75 | Atherosclerosis of native coronary artery of transplanted heart with angina pectoris | — |
| I25.76 | Atherosclerosis of bypass graft of coronary artery of transplanted heart with angina pectoris | — |
| I25.76 | Atherosclerosis of bypass graft of coronary artery of transplanted heart with angina pectoris | — |
| I25.79 | Atherosclerosis of other coronary artery bypass graft(s) with angina pectoris | — |
| I25.79 | Atherosclerosis of other coronary artery bypass graft(s) with angina pectoris | — |
| I25.81 | Atherosclerosis of other coronary vessels without angina pectoris | — |
| I25.81 | Atherosclerosis of other coronary vessels without angina pectoris | — |
| I25.82 | Chronic total occlusion of coronary artery | ✓ |
| I25.82 | Chronic total occlusion of coronary artery | ✓ |
| I25.83 | Coronary atherosclerosis due to lipid rich plaque | ✓ |
| I25.83 | Coronary atherosclerosis due to lipid rich plaque | ✓ |
| I25.84 | Coronary atherosclerosis due to calcified coronary lesion | ✓ |
| I25.84 | Coronary atherosclerosis due to calcified coronary lesion | ✓ |
| I25.85 | Chronic coronary microvascular dysfunction | ✓ |
| I25.85 | Chronic coronary microvascular dysfunction | ✓ |
| I25.89 | Other forms of chronic ischemic heart disease | ✓ |
| I25.89 | Other forms of chronic ischemic heart disease | ✓ |
| I25.110 | Atherosclerotic heart disease of native coronary artery with unstable 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 | ✓ |
| I25.111 | 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 | ✓ |
| I25.112 | 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 | ✓ |
| I25.118 | 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 | ✓ |
| I25.119 | Atherosclerotic heart disease of native coronary artery with unspecified angina pectoris | ✓ |
| I25.700 | Atherosclerosis of coronary artery bypass graft(s), unspecified, with unstable 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 | ✓ |
| I25.701 | 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 | ✓ |
| I25.702 | 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 | ✓ |
| I25.708 | 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 | ✓ |
| I25.709 | Atherosclerosis of coronary artery bypass graft(s), unspecified, with unspecified angina pectoris | ✓ |
| I25.710 | Atherosclerosis of autologous vein coronary artery bypass graft(s) with unstable 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 | ✓ |
| I25.711 | 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 | ✓ |
| I25.712 | 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 | ✓ |
| I25.718 | 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 | ✓ |
| I25.719 | Atherosclerosis of autologous vein coronary artery bypass graft(s) with unspecified angina pectoris | ✓ |
| I25.720 | Atherosclerosis of autologous artery coronary artery bypass graft(s) with unstable 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 | ✓ |
| I25.721 | 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 | ✓ |
| I25.722 | 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 | ✓ |
| I25.728 | 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 | ✓ |
| I25.729 | Atherosclerosis of autologous artery coronary artery bypass graft(s) with unspecified angina pectoris | ✓ |
| I25.730 | Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with unstable 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 | ✓ |
| I25.731 | 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 | ✓ |
| I25.732 | 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 | ✓ |
| I25.738 | 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 | ✓ |
| I25.739 | Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with unspecified angina pectoris | ✓ |
| I25.750 | Atherosclerosis of native coronary artery of transplanted heart with unstable angina | ✓ |
| 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 | ✓ |
| I25.751 | 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 | ✓ |
| I25.752 | 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 | ✓ |
| I25.758 | 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 | ✓ |
| I25.759 | Atherosclerosis of native coronary artery of transplanted heart with unspecified angina pectoris | ✓ |
| I25.760 | Atherosclerosis of bypass graft of coronary artery of transplanted heart with unstable angina | ✓ |
| 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 | ✓ |
| I25.761 | 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 | ✓ |
| I25.762 | 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 | ✓ |
| I25.768 | 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 | ✓ |
| I25.769 | Atherosclerosis of bypass graft of coronary artery of transplanted heart with unspecified angina pectoris | ✓ |
| I25.790 | Atherosclerosis of other coronary artery bypass graft(s) with unstable 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 | ✓ |
| I25.791 | 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 | ✓ |
| I25.792 | 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 | ✓ |
| I25.798 | 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 | ✓ |
| I25.799 | Atherosclerosis of other coronary artery bypass graft(s) with unspecified angina pectoris | ✓ |
| I25.810 | Atherosclerosis of coronary artery bypass graft(s) 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 | ✓ |
| I25.811 | 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 | ✓ |
| I25.812 | Atherosclerosis of bypass graft of coronary artery of transplanted heart without angina pectoris | ✓ |
Frequently asked questions
What is ICD-10-CM code I25?
I25 is an ICD-10-CM category covering Chronic ischemic heart disease. It contains 138 more specific diagnosis codes, 112 of which are billable.
Is I25 a billable code?
No — I25 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example I25.1 — Atherosclerotic heart disease of native coronary artery). 112 of the 138 codes under I25 are billable.
What codes fall under I25?
I25 includes I25.1, I25.1, I25.2, I25.2, I25.3, plus 133 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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