ICD-10 Code I70.44 – Atherosclerosis of autologous vein bypass graft(s) of the left leg with ulceration (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.44 – Atherosclerosis of autologous vein bypass graft(s) of the left leg with ulceration
What it is
This code identifies atherosclerotic narrowing or blockage in an autologous vein bypass graft in the left leg, with an associated ulcer. Use it when the graft disease and ulceration are both documented.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include reduced blood flow in the bypass graft and a nonhealing ulcer on the left leg. Confirm that the ulcer is linked to the graft disease.
When to use this code
Use I70.44 when the provider documents atherosclerosis affecting an autologous vein bypass graft in the left leg and specifies ulceration. This supports cases where the ulcer is part of the vascular complication, not a separate unrelated wound. Check documentation if laterality or graft type is unclear.
Do not use for
Do not use this code for ulcers without documented graft atherosclerosis, or for nonautologous grafts. If the record does not specify the left leg or the ulcer relationship, check documentation.
Coding tip
Verify graft type, laterality, and the documented link between the atherosclerosis and ulcer before assigning I70.44.