ICD-10 Code I72.3 – Aneurysm of iliac artery (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I72.3 – Aneurysm of iliac artery
What it is
I72.3 identifies a localized abnormal dilation of an iliac artery. Use it when the record documents an aneurysm involving the common, internal, or external iliac artery.
Clinical signs
Clinical features vary; refer to documentation. Patients may be asymptomatic, or imaging may show a focal arterial enlargement in the pelvis. Symptoms, if present, depend on size, location, and any compression of nearby structures.
When to use this code
Use this code when the provider documents an iliac artery aneurysm as the confirmed diagnosis, usually from imaging or operative findings. Code it for unilateral or bilateral iliac involvement only when the record clearly supports the iliac artery site. If the note says aneurysm without specifying location, check documentation before assigning I72.3.
Do not use for
Do not use this code for aortic aneurysm, peripheral aneurysm in another vessel, or nonspecific vascular dilation without an iliac artery diagnosis. If the documentation is unclear, check documentation.
Coding tip
Verify the exact artery named in the report; the iliac site must be explicit before you assign I72.3.