ICD-10 Code I70.22 – Atherosclerosis of native arteries of extremities with rest pain (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.22 – Atherosclerosis of native arteries of extremities with rest pain
What it is
I70.22 identifies atherosclerosis in the native arteries of the arms or legs when poor blood flow causes rest pain. Use it when the artery disease is documented in a native vessel, not a bypass graft.
Clinical signs
Typical findings include ischemic pain present at rest, often worse when the limb is elevated and relieved by dependency. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents atherosclerosis of native extremity arteries with rest pain, including peripheral arterial disease with ischemic pain at rest. It may also fit when the note clearly links the pain to limb ischemia. If the record does not specify native arteries or rest pain, check documentation.
Do not use for
Do not use I70.22 for claudication without rest pain or for atherosclerosis of bypass grafts. Do not assign it when the condition is not documented as involving native extremity arteries.
Coding tip
Confirm both elements: native extremity arteries and rest pain; if either is missing, verify the provider’s documentation before coding.