ICD-10 Code I70.345 – Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration of other part of foot (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.345 – Atherosclerosis of unspecified type of bypass graft(s) of the left leg with ulceration of other part of foot
What it is
This code identifies atherosclerotic disease in a bypass graft in the left leg, with an ulcer located on another part of the foot. Use it when the record documents both graft disease and an associated foot ulcer.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include reduced limb perfusion, graft stenosis or occlusion, and a nonhealing ulcer on the foot. The ulcer location must be documented as “other part of foot.”
When to use this code
Use I70.345 when the provider documents atherosclerosis affecting an unspecified bypass graft in the left leg and a foot ulcer tied to that condition. The record should support the left-sided graft site and the ulcer location. If the ulcer site or graft type is unclear, check documentation before coding.
Do not use for
Do not use this code for native artery atherosclerosis without a bypass graft, or for ulcers not linked to the graft disease. If the chart does not specify the left leg or the ulcer location, do not assume this code.
Coding tip
Verify both the bypass graft laterality and the exact foot ulcer location before assigning I70.345.