CPT® Code 93986

Duplex scan of arterial inflow and venous outflow for preoperative vessel assessment prior to creation of hemodialysis access; complete unilateral study

Duplex scan of arterial inflow and venous outflow is a specialized ultrasound technique used to assess blood flow dynamics in the vessels prior to the creation of hemodialysis access. This procedure is particularly important for patients with kidney failure who require an arteriovenous fistula (AVF) for hemodialysis. The duplex scan combines two imaging modalities: traditional ultrasound and pulsed wave color flow Doppler imaging. This combination allows for a comprehensive evaluation of both the structure of blood vessels and the speed and direction of blood flow within them. The ultrasound component provides a two-dimensional image of the blood vessels, while the Doppler component adds color coding to visualize blood flow, enabling healthcare providers to detect any abnormalities in vessel integrity or blood flow patterns. The procedure is typically performed on the upper extremity vessels, where the AVF will be created, and is especially useful for patients who may have complicating factors such as obesity, previous access surgeries, or suspected vascular diseases. By utilizing this duplex scanning technique, clinicians can make informed decisions regarding the suitability of the vessels for hemodialysis access, ensuring optimal outcomes for patients undergoing this critical procedure.