ICD-10 Code I70.63 – Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.63 – Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration
What it is
This code identifies atherosclerotic narrowing or blockage in a nonbiological bypass graft in the right leg, with an associated ulcer. It reflects graft disease in the limb, not native artery disease alone.
Clinical signs
Findings may include reduced leg perfusion, pain with walking or rest, and a nonhealing ulcer on the right leg or foot. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents atherosclerosis affecting a nonbiological bypass graft in the right leg and an ulcer is present. The ulcer must be linked to the graft disease in the record. If the side, graft type, or ulcer relationship is unclear, check documentation.
Do not use for
Do not use this code for atherosclerosis of the native arteries without graft involvement, or for ulcers not documented as related to the graft disease. Do not assume laterality or graft type.
Coding tip
Confirm the graft is nonbiological and the ulcer is documented with right-leg involvement before assigning I70.63.