ICD-10 Code I25.73 – Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I25.73 – Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris
What it is
This code identifies atherosclerotic disease in a nonautologous biological coronary artery bypass graft, with angina pectoris present. Use it when the graft itself has plaque-related narrowing and the record links the chest pain to that condition.
Clinical signs
Typical findings include exertional chest discomfort, pressure, or tightness consistent with angina. Clinical features vary; refer to documentation for evidence of graft atherosclerosis, ischemia, or provider-stated angina diagnosis.
When to use this code
Use this code when the provider documents atherosclerosis in a nonautologous biological coronary bypass graft and also documents angina pectoris. It is appropriate for postoperative or follow-up records when the graft remains the diseased coronary vessel. Check documentation if the angina type is not stated.
Do not use for
Do not use it for native coronary artery disease without graft involvement, or for bypass grafts made from the patient’s own tissue or another non-biological conduit. Do not assign it if angina is not documented with the graft atherosclerosis.
Coding tip
Confirm both the graft type and the angina relationship in the note before you code I25.73.