A patient presented to the catheterization lab for a suprarenal and infrarenal abdominal aortography with iliofemoral runoff. The catheter was placed in the suprarenal abdominal aorta and the aortography was performed. The catheter was then pulled downward to the lower abdominal aorta and an infrarenal aortography was performed with iliofemoral runoff. During the procedure a flow wire was passed, followed by catheters into the left common iliac artery and into the left femoral artery where nitroglycerin was administered to measure the blood flow velocity or fractional flow reserve. Since the fractional flow reserve (FFR) measurement was not performed on a coronary artery (CPT code 93571) what would be the correct code assignment in this case for the FFR performed on non-coronary arteries?
Report CPT code 93799, Unlisted cardiovascular service or procedure, for the fractional flow reserve measurement procedure performed on the non-coronary arteries. This code would be assigned in addition to the CPT code for the primary procedure.