ICD-10 Code I25.791 – Atherosclerosis of other coronary artery bypass graft(s) with angina pectoris with documented spasm (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I25.791 – Atherosclerosis of other coronary artery bypass graft(s) with angina pectoris with documented spasm
What it is
This code identifies atherosclerotic narrowing in a coronary artery bypass graft, with angina pectoris and documented spasm. Use it when the record clearly links symptoms to the graft and notes spasm.
Clinical signs
Typical documentation may include chest pain or angina in a patient with prior coronary bypass grafting. Clinical features vary; refer to documentation for evidence of graft disease and confirmed spasm.
When to use this code
Use this code when the provider documents atherosclerosis affecting an “other” coronary bypass graft and specifies angina pectoris with documented spasm. It fits postoperative coronary graft disease when the symptomatic graft, not the native vessel, is the focus. Check documentation if the record does not clearly identify the graft or the spasm.
Do not use for
Do not use this code for angina without documented spasm, or for atherosclerosis limited to native coronary arteries. If the note names a different bypass graft category or lacks specificity, check documentation.
Coding tip
Confirm both the bypass graft site and the documented spasm before assigning I25.791.