CPT® Code 50435

Exchange nephrostomy catheter, percutaneous, including diagnostic nephrostogram and/or ureterogram when performed, imaging guidance (eg, ultrasound and/or fluoroscopy) and all associated radiological supervision and interpretation

The CPT® Code 50435 refers to the procedure of exchanging a nephrostomy catheter through a percutaneous approach. This procedure is essential for patients who require the maintenance or restoration of urine flow from the kidney to the bladder, particularly in cases where there are obstructions such as strictures, leaks, or fistulas in the urinary tract. The nephrostomy catheter serves as a temporary solution to bypass these issues, allowing for the drainage of urine directly from the kidney. During the procedure, imaging guidance, which may include ultrasound or fluoroscopy, is utilized to ensure accurate placement and monitoring of the catheter. Additionally, the procedure encompasses the performance of diagnostic nephrostograms and/or ureterograms, which involve the injection of contrast dye to visualize the urinary tract and assess the flow of urine. This comprehensive approach ensures that all necessary radiological supervision and interpretation are included, facilitating effective management of urinary tract complications.