ICD-10 Code I72.1 – Aneurysm of artery of upper extremity (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I72.1 – Aneurysm of artery of upper extremity
What it is
This code identifies an aneurysm involving an artery in the upper extremity, meaning an abnormal localized widening of a blood vessel in the arm or forearm. Use it when the documentation clearly states an arterial aneurysm in the upper limb.
Clinical signs
Clinical features vary; refer to documentation. Commonly documented findings include a pulsatile mass, bruit, limb pain, swelling, or evidence of distal circulation issues. Imaging such as ultrasound, CT, or angiography may confirm the diagnosis.
When to use this code
Use I72.1 when the provider documents an aneurysm of an upper-extremity artery, whether incidental or symptomatic. It also applies when the aneurysm is confirmed by imaging or specialist assessment. Make sure the record specifies the upper limb vessel rather than another arterial site.
Do not use for
Do not use this code for aneurysms in the aorta, lower extremity, or unspecified arteries. If the record only mentions a lump, vascular malformation, or pseudoaneurysm, check documentation before assigning I72.1.
Coding tip
Verify the anatomic site carefully; upper-extremity artery documentation must be explicit before you code I72.1.