ICD-10 Code I70.201 – Unspecified atherosclerosis of native arteries of extremities, right leg (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.201 – Unspecified atherosclerosis of native arteries of extremities, right leg
What it is
This code identifies atherosclerosis in the native arteries of the right leg when the documentation does not specify the vessel or the type of atherosclerotic disease. It indicates plaque-related narrowing or hardening affecting the limb’s own arteries.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include leg pain with walking, diminished pulses, cool skin, or other signs of peripheral arterial disease involving the right lower extremity.
When to use this code
Use this code when the provider documents atherosclerosis of native arteries in the right leg but does not name a more specific artery or complication. It also fits when laterality is clear and the disease is not described as gangrene, ulceration, or another more specific form. If the note gives a more detailed diagnosis, code that instead.
Do not use for
Do not use this code for atherosclerosis with ulcer, gangrene, or other specified complications. Also avoid it when the documentation identifies a different limb, graft, bypass vessel, or a more specific artery.
Coding tip
Confirm the right leg and “native arteries” wording in the note before assigning I70.201.