Superselective catheter placement (one or more second
order or higher renal artery branches) renal artery and any
accessory renal artery(s) for renal angiography, including
arterial puncture, catheterization, fluoroscopy, contrast
injection(s), image postprocessing, permanent recording of
images, and radiological supervision and interpretation,
including pressure gradient measurements when
performed, and flush aortogram when performed;
bilateral