ICD-10 Code I70.25 – Atherosclerosis of native arteries of other extremities with ulceration (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.25 – Atherosclerosis of native arteries of other extremities with ulceration
What it is
This code identifies atherosclerosis in the native arteries of an upper or lower extremity other than the common categories, when an ulcer is present. It reflects peripheral arterial disease with tissue breakdown linked to poor blood flow.
Clinical signs
Typical findings include diminished pulses, cool or pale extremity skin, pain with walking or at rest, and a nonhealing ulcer in the affected limb. Clinical features vary; refer to documentation.
When to use this code
Use I70.25 when the provider documents native-artery atherosclerosis in another extremity and specifically links it to an ulcer. The ulcer must be documented as part of the condition, not just a separate wound. Check documentation for laterality, site, and any more specific PAD details.
Do not use for
Do not use this code for ulcers caused by trauma, pressure, diabetes, or venous disease without documented arterial atherosclerosis. Also avoid it when the ulcer is absent or the vascular disease is described in a different artery group.
Coding tip
Confirm that the ulcer and the arterial disease are both documented, because the ulcer changes code selection.