In simple words: This code indicates that a patient has a large aortic aneurysm, which is a bulge in the main artery coming from the heart. The bulge is at least 6 centimeters wide, as measured on a special type of X-ray called a CT scan.

Documentation of an aortic aneurysm with a maximum diameter of 6.0 cm or greater on CT imaging. The measurement is taken on the centerline for centerline formatted CT scans and on the minor diameter for axial formatted CT scans. This code is for performance measurement and not required for correct coding. It does not have an associated RVU.

Example 1: A 70-year-old male patient with a history of hypertension and smoking presents for a routine check-up. A CT scan of the abdomen incidentally reveals an abdominal aortic aneurysm measuring 6.2 cm in maximum diameter. Code 9004F is reported to track the presence of this significant aneurysm., A 55-year-old female patient with Marfan syndrome undergoes regular surveillance imaging. A thoracic aortic aneurysm is identified on CT, measuring 6.0 cm at its widest point. Code 9004F is reported due to the increased risk of complications associated with her underlying condition., A 65-year-old patient with a known abdominal aortic aneurysm undergoes follow-up CT imaging. The aneurysm, previously measuring 5.8 cm, has now increased to 6.1 cm. Code 9004F is reported to reflect this size increase and the elevated risk of rupture.

Report of abdominal aortic aneurysm 6.0 cm or greater on CT imaging with specifications on measurement method (centerline or minor diameter) depending on CT format.