ICD-10 Code I70.632 – Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration of calf (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.632 – Atherosclerosis of nonbiological bypass graft(s) of the right leg with ulceration of calf
What it is
This code identifies plaque buildup in a nonbiological bypass graft in the right leg, with an associated ulcer on the calf. It tells you the graft is affected by atherosclerosis and the skin breakdown is part of the coded condition.
Clinical signs
Findings may include reduced blood flow in the grafted limb, delayed healing, and a calf ulcer with ischemic features. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents atherosclerosis involving a nonbiological bypass graft in the right leg and specifically links it to a calf ulcer. The ulcer location should be documented as the calf. If laterality, graft type, or ulcer site is unclear, check documentation.
Do not use for
Do not use this code for atherosclerosis without a bypass graft, a left-leg condition, or an ulcer at another site. Do not use it when the ulcer is unrelated to the graft disease.
Coding tip
Verify graft type, right-sided laterality, and calf ulcer documentation before assigning I70.632.