ICD-10 Code I25.731 – Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris with documented spasm (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I25.731 – Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris with documented spasm
What it is
This code identifies atherosclerosis in a nonautologous biological coronary bypass graft, together with angina pectoris and documented coronary spasm. Use it when the graft itself is affected and the spasm is specifically documented.
Clinical signs
Typical findings include chest pain or pressure consistent with angina, often with evidence of graft disease on cardiac evaluation. Clinical features vary; refer to documentation, and confirm that spasm is documented rather than assumed.
When to use this code
Use this code when the provider documents atherosclerosis in a biological coronary artery bypass graft and also states angina pectoris with documented spasm. It applies to post-bypass patients with graft-related ischemic symptoms. Check documentation if the note only mentions coronary artery disease or angina without graft involvement.
Do not use for
Do not use it for native coronary artery atherosclerosis, unspecified angina, or coronary spasm without documented graft atherosclerosis. Check documentation if the graft type or the presence of spasm is unclear.
Coding tip
Assign I25.731 only when both the graft atherosclerosis and documented spasm are clearly stated in the record.