ICD-10 Code I70.228 – Atherosclerosis of Native Arteries of Extremities with Rest Pain, Other Extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.228 – Atherosclerosis of native arteries of extremities with rest pain, other extremity
What it is
This code identifies atherosclerosis in a native artery of an extremity with rest pain, affecting an unspecified “other” extremity. It means plaque has narrowed the artery enough to cause ischemic pain even when the patient is not walking.
Clinical signs
Typical findings include persistent ischemic pain at rest, often worse at night or when the limb is elevated. Clinical features vary; refer to documentation for the affected limb and any associated peripheral arterial disease findings.
When to use this code
Use this code when the provider documents atherosclerosis of a native extremity artery with rest pain and identifies the limb as an other extremity, not specifically right or left. It may apply in chronic limb ischemia documentation when pain is present without exertion. Confirm that the record supports native-artery disease and rest pain.
Do not use for
Do not use this code if the artery is a bypass graft, stent, or other non-native vessel. If the chart does not specify rest pain or the extremity laterality is documented differently, check documentation.
Coding tip
Verify both the vascular site and the “other extremity” designation before assigning I70.228.