I71.43

Billable

Infrarenal abdominal aortic aneurysm, without rupture

HCC Category Mapping

V24HCC 108 — Vascular Disease

0.297

ESRDHCC 108 — Vascular Disease

0.000

What This Code Means

A bulging or weakening of the aorta (main artery from the heart) below the kidneys that has not burst or ruptured.

Coding Tips

•This code specifies the infrarenal location, which is below the renal arteries - ensure documentation clearly indicates this anatomical site
•The 'without rupture' status is critical; if rupture is documented, use a different code from the I71.1-I71.5 range

Clinical Significance

Infrarenal abdominal aortic aneurysm is the most common type of abdominal aortic aneurysm, occurring below the renal arteries. While generally more amenable to endovascular repair than juxtarenal or suprarenal aneurysms, it still carries significant morbidity and mortality risk if not monitored. Accurate coding of the specific anatomic location supports appropriate risk stratification and surveillance planning.

Documentation Requirements

✓Specific anatomic location documented as infrarenal (below the renal arteries)
✓Imaging confirmation with measured maximum diameter
✓Statement that the aneurysm is without rupture/intact
✓Interval change documentation if prior imaging exists
✓Symptomatic vs asymptomatic status
✓Management plan including surveillance schedule or surgical referral

Commonly Confused Codes

I71.42 — Juxtarenal abdominal aortic aneurysm, without rupture: juxtarenal is at the level of the renal arteries, a more complex anatomic location I71.41 — Pararenal abdominal aortic aneurysm, without rupture: pararenal involves the area around the renal arteries I71.4 — Abdominal aortic aneurysm, without rupture (unspecified): should use specific location code when supported I71.3 — Abdominal aortic aneurysm, ruptured: do not code ruptured unless documented with evidence of rupture

Code Hierarchy

└I71Aortic aneurysm and dissection └I71.4Abdominal aortic aneurysm, without rupture └I71.43Infrarenal abdominal aortic aneurysm, without rupture

└I71.43Infrarenal abdominal aortic aneurysm, without rupture