ICD-10 Code I70.23 – Atherosclerosis of native arteries of right leg with ulceration (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I70.23 – Atherosclerosis of native arteries of right leg with ulceration
What it is
This code identifies atherosclerosis in the native arteries of the right leg when an ulcer is present. It shows that reduced arterial blood flow is associated with tissue breakdown in that limb.
Clinical signs
Typical findings include signs of peripheral arterial disease with a right leg ulcer, such as poor healing, pain, or ischemic skin changes. Clinical features vary; refer to documentation.
When to use this code
Use I70.23 when the provider documents atherosclerosis of native arteries in the right leg and also documents ulceration. The record should support both the arterial disease and the ulcer on the right side. If laterality or ulcer association is unclear, check documentation.
Do not use for
Do not use this code for venous ulcers, diabetic ulcers without documented arterial atherosclerosis, or ulcers without a documented right-leg arterial cause. Check documentation.
Coding tip
Confirm that the ulcer is linked to the right-leg native artery atherosclerosis before assigning this code.