CPT® Code 50393

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The CPT® Code 50393 refers to the procedure involving the introduction of a ureteral catheter or stent into the ureter through the renal pelvis, primarily for the purposes of drainage and/or injection. This procedure is performed percutaneously, meaning it is done through the skin, typically in the flank region where the kidney is located. The process begins with the cleansing of the skin to minimize the risk of infection, followed by the administration of a local anesthetic to ensure patient comfort during the procedure. A needle is then carefully inserted to access the kidney, and a guidewire is advanced through this needle to facilitate the placement of the catheter or stent. The catheter or stent is advanced into the ureter in an antegrade fashion, which means it is directed from the kidney down towards the bladder. This method allows for effective drainage of urine or the administration of contrast material for diagnostic purposes. The procedure is guided by radiographic imaging to ensure accurate placement and functionality of the catheter or stent. Once positioned, the guidewire is removed, and the catheter or stent is secured in place, often with a suture, to prevent displacement. This procedure is essential for managing urinary obstructions or for performing interventions that require access to the urinary tract.