CPT® Code 50693

Placement of ureteral stent, percutaneous, including diagnostic nephrostogram and/or ureterogram when performed, imaging guidance (eg, ultrasound and/or fluoroscopy), and all associated radiological supervision and interpretation; pre-existing nephrostomy tract

The procedure described by CPT® Code 50693 involves the placement of a ureteral stent through a pre-existing nephrostomy tract. A ureteral stent is a thin tube that is inserted into the ureter, the duct that carries urine from the kidney to the bladder, to ensure the unobstructed flow of urine. This procedure is typically indicated in cases where there are strictures, leaks, or fistulas that impede normal urinary flow. The use of a pre-existing nephrostomy tract allows for a less invasive approach to stent placement, as it utilizes an already established pathway for access to the urinary system. During the procedure, imaging techniques such as ultrasound and fluoroscopy are employed to visualize the urinary tract and guide the placement of the stent accurately. The process includes the injection of contrast dye through the nephrostomy catheter to enhance the visibility of the urinary structures, facilitating the successful navigation of the guidewire and stent into the appropriate anatomical locations. This comprehensive approach ensures that all necessary diagnostic imaging and radiological supervision are included in the procedure, thereby enhancing the overall effectiveness and safety of the stent placement.