Aneurysm of iliac artery

This code signifies a localized, abnormal dilation or ballooning of the wall of the iliac artery, which is a major blood vessel supplying blood to the pelvis and lower limbs. This weakening of the arterial wall can lead to rupture, hemorrhage, and other serious complications.

Assign this code when documentation explicitly states a diagnosis of an aneurysm affecting any segment of the iliac artery (common, internal, or external). Supporting documentation would include imaging reports (e.g., ultrasound, CT angiography, MRI) confirming the presence and location of the aneurysm.

• Differentiate from dissection of the iliac artery, which involves a tear in the arterial wall rather than a dilation.
• Specify laterality (left, right, or bilateral) if documented, though this code does not allow for laterality specificity.
• Ensure documentation clearly identifies the iliac artery as the affected vessel, as opposed to other abdominal or peripheral arteries.