ICD-10 Code I25.700 – Atherosclerosis of coronary artery bypass graft(s), unspecified, with unstable angina pectoris (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I25.700 – Atherosclerosis of coronary artery bypass graft(s), unspecified, with unstable angina pectoris
What it is
This code identifies atherosclerotic narrowing or blockage in a coronary bypass graft, with no graft type specified, and with unstable angina pectoris. It indicates ischemic chest pain related to graft disease.
Clinical signs
Patients may have chest pain or pressure at rest or with minimal exertion, sometimes with shortness of breath or other ischemic symptoms. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents atherosclerosis involving a coronary artery bypass graft and specifically links it to unstable angina pectoris. The graft type is not identified in the record. Confirm that the documentation supports graft disease rather than native coronary artery disease.
Do not use for
Do not use this code if the record describes stable angina, no angina, or disease of native coronary arteries only. Check documentation if the graft type or the relationship to unstable angina is unclear.
Coding tip
Code the bypass graft condition only when both the graft atherosclerosis and unstable angina are clearly documented together.