ICD-10 Code I70.428 – Atherosclerosis of autologous vein bypass graft(s) of the extremities with rest pain, other extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.428 – Atherosclerosis of autologous vein bypass graft(s) of the extremities with rest pain, other extremity
What it is
This code identifies atherosclerotic narrowing or blockage in an autologous vein bypass graft in an extremity, with rest pain present in the other extremity. Use it when the graft is the documented site and the pain pattern matches.
Clinical signs
Typical findings include ischemic rest pain, usually worse at night or when the limb is elevated, plus documentation of a diseased vein bypass graft. Clinical features vary; refer to documentation.
When to use this code
Use I70.428 when the provider documents atherosclerosis affecting an autologous vein bypass graft in an extremity and specifies rest pain in the other extremity. The record should show the bypass graft type and the involved extremity details. If documentation is incomplete, check documentation before coding.
Do not use for
Do not use this code for native artery atherosclerosis, prosthetic graft disease, or bypass grafts without rest pain. If the pain is not documented as being in the other extremity, verify the site first.
Coding tip
Match the graft type, limb laterality, and rest-pain location exactly to the provider note before assigning I70.428.