ICD-10 Code I70.731 – Atherosclerosis of other type of bypass graft(s) of the right leg with ulceration of thigh (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.731 – Atherosclerosis of other type of bypass graft(s) of the right leg with ulceration of thigh
What it is
This code identifies atherosclerosis affecting another type of bypass graft in the right leg, with an associated ulcer on the thigh. It tells you the graft is narrowed or blocked by plaque and the ulcer is part of the documented condition.
Clinical signs
Findings may include reduced blood flow through the graft, limb pain, cool skin, weak pulses, or delayed wound healing. Clinical features vary; refer to documentation, especially for the ulcer location and graft involvement.
When to use this code
Use this code when the provider documents atherosclerosis in a bypass graft of the right leg and specifically links it to an ulcer of the thigh. You should also confirm that the graft is not an autologous vein graft or an unspecified vessel. If the ulcer site or graft type is unclear, check documentation.
Do not use for
Do not use this code for atherosclerosis without ulceration, or when the ulcer is in a different site than the thigh. Do not assign it if the graft type or laterality is not supported in the record.
Coding tip
Verify both the right-leg graft involvement and the thigh ulcer before coding, because the combination drives the specificity of I70.731.