ICD-10 Code I70.301 – Unspecified atherosclerosis of unspecified type of bypass graft(s) of the extremities, right leg (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.301 – Unspecified atherosclerosis of unspecified type of bypass graft(s) of the extremities, right leg
What it is
This code identifies atherosclerotic narrowing or blockage in a bypass graft supplying the right leg when the graft type is not specified. Use it when the record confirms graft disease but does not name the graft material.
Clinical signs
Clinical features may include reduced leg perfusion, exertional leg pain, rest pain, or diminished pulses. Clinical features vary; refer to documentation.
When to use this code
Use I70.301 when the provider documents atherosclerosis affecting a bypass graft in the right lower extremity and does not specify the graft type. It is appropriate for postoperative vascular follow-up notes, imaging reports, or problem lists that clearly identify right-leg bypass graft disease. If the laterality or graft type is documented differently, code to the more specific entry.
Do not use for
Do not use this code for native artery atherosclerosis, graft infection, or graft occlusion without documented atherosclerosis. Check documentation.
Coding tip
Confirm both the right-leg location and the “unspecified type” wording before assigning I70.301.