CPT® Code 50080

Percutaneous nephrolithotomy or pyelolithotomy, lithotripsy, stone extraction, antegrade ureteroscopy, antegrade stent placement and nephrostomy tube placement, when performed, including imaging guidance; simple (eg, stone[s] up to 2 cm in single location of kidney or renal pelvis, nonbranching stones)

The procedure described by CPT® Code 50080 involves the removal of renal calculi, commonly known as kidney stones, using a percutaneous approach. This technique is minimally invasive and is performed under imaging guidance, typically fluoroscopy, to ensure accurate placement and navigation within the kidney. The process begins with the preparation of the skin at the designated puncture site, which is thoroughly cleansed, followed by the administration of a local anesthetic to minimize discomfort during the procedure. A needle is then carefully advanced through the skin and into the kidney, allowing for the introduction of a guidewire. This guidewire facilitates the placement of a sheath, through which a rigid nephroscope is inserted to visualize the stone. Once the stone is located, various lithotripsy methods, including ultrasound, electrohydraulics, pneumatic lithotripters, or laser technology, are employed to fragment the stone into smaller pieces. These fragments are subsequently extracted using specialized tools such as forceps or suction devices. In cases where stones are located in the calyces, a flexible nephroscope may be utilized to navigate through anatomical curves, allowing for effective fragmentation and removal of the stones. Following the nephrolithotomy, antegrade ureteroscopy is performed to ensure that no residual stone fragments remain in the ureter. This involves passing a flexible ureteroscope through the access sheath to examine the ureter and ureteropelvic junction. Any small fragments can be removed with a basket extractor, while larger stones may require additional fragmentation before removal. After confirming that the ureter is clear, the nephroscope is withdrawn, and a nephrostomy tube is placed to facilitate drainage from the kidney. Throughout the procedure, careful monitoring of fluids and pressures is conducted, and the ipsilateral lung is assessed for potential complications such as hydrothorax or pneumothorax. This code is specifically applicable for the removal of simple, unbranched stones measuring up to 2 cm in a single location within the kidney or renal pelvis.