CPT® Code 50392

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The procedure described by CPT® Code 50392 involves the introduction of an intracatheter or catheter into the renal pelvis for the purposes of drainage and/or injection. This procedure is commonly referred to as the placement of a nephrostomy tube. A nephrostomy tube is a flexible tube that is inserted through the skin into the renal pelvis, which is the area of the kidney where urine collects before it moves to the ureter. The primary goal of this procedure is to facilitate the drainage of urine from the kidney when normal urinary flow is obstructed or to allow for the injection of contrast material for diagnostic imaging purposes. The procedure is performed percutaneously, meaning it is done through the skin, typically in the flank region over the kidney. This approach minimizes the need for more invasive surgical techniques and is guided by imaging technology to ensure accurate placement of the catheter. The use of local anesthetic during the procedure helps to manage patient discomfort, and the entire process is conducted under radiologic supervision to confirm proper catheter positioning and function.