ICD-10 Code I70.29 – Other atherosclerosis of native arteries of extremities (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.29 – Other atherosclerosis of native arteries of extremities
What it is
I70.29 identifies atherosclerosis in the native arteries of an extremity when the record does not specify a more exact type. It reflects plaque-related narrowing or hardening in the arm or leg arteries.
Clinical signs
Clinical features vary; refer to documentation. Common findings include reduced limb blood flow, exertional leg pain, coolness, diminished pulses, or nonhealing ischemic changes.
When to use this code
Use this code when the provider documents atherosclerosis of a native artery in an extremity and does not name another more specific code. It may appear in vascular follow-up, imaging-based assessment, or problem lists describing peripheral arterial disease. Check documentation for laterality and any associated gangrene or ulceration.
Do not use for
Do not use it for atherosclerosis of bypass grafts, coronary arteries, or non-extremity vessels. If the chart specifies a more exact peripheral arterial code, use that instead.
Coding tip
Confirm the vessel is native and the documentation does not support a more specific extremity atherosclerosis code before assigning I70.29.