ICD-10 Code I70.223 – Atherosclerosis of native arteries of extremities with rest pain, bilateral legs (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.223 – Atherosclerosis of native arteries of extremities with rest pain, bilateral legs
What it is
I70.223 identifies atherosclerotic narrowing of the native arteries in both legs, with ischemic pain present at rest. Use it when documentation shows bilateral lower-extremity arterial disease causing pain even without activity.
Clinical signs
Typical findings include leg or foot pain at rest, often worse at night or when elevated, with relief from dependency. Clinical features vary; refer to documentation for laterality and whether the condition is truly at rest.
When to use this code
Use this code when the provider documents atherosclerosis of native arteries affecting both lower extremities and specifies rest pain. It is appropriate for chronic peripheral arterial disease of the native vessels, not grafts or bypasses. Confirm bilateral involvement in the record before assigning I70.223.
Do not use for
Do not use this code for intermittent claudication without rest pain, or for atherosclerosis limited to one leg. Check documentation if the disease involves bypass grafts, unspecified extremity arteries, or no clear laterality.
Coding tip
Code the documented laterality exactly; if bilateral rest pain is not stated, choose the more specific supported code.