CPT® Code 93922

Limited bilateral noninvasive physiologic studies of upper or lower extremity arteries, (eg, for lower extremity: ankle/brachial indices at distal posterior tibial and anterior tibial/dorsalis pedis arteries plus bidirectional, Doppler waveform recording and analysis at 1-2 levels, or ankle/brachial indices at distal posterior tibial and anterior tibial/dorsalis pedis arteries plus volume plethysmography at 1-2 levels, or ankle/brachial indices at distal posterior tibial and anterior tibial/dorsalis pedis arteries with, transcutaneous oxygen tension measurement at 1-2 levels)

Limited bilateral noninvasive physiologic studies of the upper or lower extremity arteries, as described by CPT® Code 93922, are diagnostic procedures aimed at evaluating arterial disease. These studies are noninvasive, meaning they do not require any surgical intervention or penetration of the skin. The primary goal is to assess blood flow and identify potential issues within the arteries of the extremities. The procedures may include various techniques such as Doppler ultrasound waveform analysis, plethysmography, and transcutaneous oxygen tension measurements. Each of these methods provides valuable information regarding the condition of the arteries, helping to diagnose conditions like peripheral artery disease, deep vein thrombosis, and other vascular disorders. Doppler ultrasound waveform studies involve placing a Doppler probe on the skin over the artery, which detects and records blood flow signals. This allows for the visualization of both forward and reverse blood flow during the cardiac cycle. Plethysmography, on the other hand, measures the volume of blood flow in a specific area, which can help identify blockages or abnormalities. Oxygen tension measurements assess the oxygen saturation in capillaries, providing further insight into the vascular health of the extremities. The choice of studies performed and the specific levels at which they are conducted depend on the type and extent of the arterial disease being evaluated. This code is specifically used for limited studies, which are defined as bilateral assessments at one to two levels, distinguishing it from more comprehensive studies that may involve additional levels or provocative maneuvers.