ICD-10 Code I70.348 – Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration of other part of lower leg (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.348 – Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration of other part of lower leg
What it is
This code identifies atherosclerotic disease in a bypass graft in the left leg, with an associated ulcer on another part of the lower leg. It signals both vascular graft disease and tissue breakdown.
Clinical signs
Look for documented peripheral arterial disease in a left leg bypass graft plus an ulcer on the lower leg. Clinical features vary; refer to documentation for ulcer location, graft type, and laterality.
When to use this code
Use this code when the provider documents atherosclerosis affecting an unspecified bypass graft in the left leg and also documents ulceration of another part of the lower leg. You should confirm the ulcer is linked to the vascular disease. If the record does not specify graft type or ulcer site clearly, check documentation.
Do not use for
Do not use this code for ulcers without documented atherosclerosis of a bypass graft, or for disease in the right leg or native vessels. Check documentation if the graft type or ulcer relationship is unclear.
Coding tip
Verify the bypass graft laterality and ulcer site together before assigning I70.348.