ICD-10 Code I70.749 – Atherosclerosis of other type of bypass graft(s) of the left leg with ulceration of unspecified site (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.749 – Atherosclerosis of other type of bypass graft(s) of the left leg with ulceration of unspecified site
What it is
This code identifies atherosclerotic narrowing or blockage in a nonautologous bypass graft in the left leg, with an associated ulcer but no documented ulcer site. Use it when the graft disease and ulceration are both stated.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include reduced limb perfusion, ischemic pain, diminished pulses, or a nonhealing ulcer in the left leg linked to graft disease.
When to use this code
Use I70.749 when the record clearly states atherosclerosis affecting an other type of bypass graft in the left leg and also documents ulceration. The ulcer location is unspecified, so do not assign a more specific ulcer code unless the site is documented. Check documentation if the graft type or laterality is unclear.
Do not use for
Do not use this code for native artery atherosclerosis, ulcers without documented graft disease, or bypass graft disease in another limb. If the ulcer site or graft type is different, check documentation.
Coding tip
Verify that the chart names the left leg graft and confirms ulceration, because the code depends on both elements being documented.