ICD-10 Code I71.43 – Infrarenal abdominal aortic aneurysm, without rupture (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I71.43 – Infrarenal abdominal aortic aneurysm, without rupture
What it is
This code identifies an abdominal aortic aneurysm located below the renal arteries, with no rupture documented. Use it when the aneurysm is specifically infrarenal and intact.
Clinical signs
Clinical features vary; refer to documentation. Many patients are asymptomatic, and the diagnosis is often found on imaging or during evaluation for abdominal or back pain.
When to use this code
Use I71.43 when the provider documents an infrarenal abdominal aortic aneurysm without rupture. It also fits follow-up visits when the intact aneurysm remains the active condition. If the record only says abdominal aortic aneurysm, check whether the location and rupture status are stated.
Do not use for
Do not use this code for a ruptured aneurysm or for aneurysms in other aortic segments. If the documentation does not confirm the infrarenal location, check documentation.
Coding tip
Code the exact location and rupture status together; both details must match the provider’s documentation.