ICD-10 Code I70.212 – Atherosclerosis of native arteries of extremities with intermittent claudication, left leg (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.212 – Atherosclerosis of native arteries of extremities with intermittent claudication, left leg
What it is
This code identifies atherosclerosis in the native arteries of the left leg with intermittent claudication. It means narrowed arteries reduce blood flow and cause exertional leg pain that improves with rest.
Clinical signs
Typical findings include leg discomfort, cramping, or fatigue brought on by walking and relieved by rest. Clinical features vary; refer to documentation for laterality and whether claudication is clearly documented.
When to use this code
Use I70.212 when the record documents atherosclerosis affecting native arteries in the left lower extremity and specifically states intermittent claudication. You should code the documented laterality exactly as written. If the note only says peripheral arterial disease or leg pain without claudication, check documentation.
Do not use for
Do not use this code for atherosclerosis without intermittent claudication, or when the affected side is not the left leg. Do not assign it if the documentation describes symptoms only and does not confirm the diagnosis.
Coding tip
Verify both elements: native artery disease and left-sided intermittent claudication, before assigning I70.212.