ICD-10 Code I25.738 – Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with other forms of angina pectoris (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I25.738 – Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with other forms of angina pectoris
What it is
This code identifies atherosclerosis affecting a nonautologous biological coronary artery bypass graft, with angina pectoris that is not specified as unstable or due to a recent acute coronary event. Use it when the record clearly links the graft disease and the angina.
Clinical signs
Patients may report exertional chest discomfort, pressure, or tightness consistent with angina. Documentation may also note coronary graft disease, ischemic symptoms, or diagnostic evidence of graft narrowing; clinical features vary, refer to documentation.
When to use this code
Use this code when the provider documents atherosclerosis in a biological coronary bypass graft and also documents other forms of angina pectoris. It fits follow-up or active management notes where the graft lesion is the cause of ischemic chest pain. Check documentation if the angina type is unclear.
Do not use for
Do not use this code for native coronary artery disease without graft involvement, or for angina not linked to the bypass graft. Do not assign it if the record only says chest pain without a documented diagnosis of angina.
Coding tip
Verify that the graft is nonautologous biological and that the angina diagnosis is explicitly documented before assigning I25.738.