Ask Dr. Z

I coded 50389 for the catheter removal. Not sure if 50684 and 74425 are correct for the contrast injection into the double-J stent (ureterogram)?

"Right tube nephrostogram was performed. Then a right ureterogram was performed to determine if the double-J ureteral stent is patent. Following identification of contrast flowing into the urinary bladder via the indwelling double-J ureteral stent, the right nephrostomy tube was removed under direct fluoroscopic visualization to prevent inadvertent retraction of the indwelling ureteral stent. Finding: An antegrade tube nephrostogram demonstrates mild dilatation of the right collecting system with contrast flowing through the double-J stent into the urinary bladder."