need help with code

I need some help with a code, the procedure being done is a laparoscopic cholecystectomy with cholangiogram, common bile duct exploration with stent placement. Does procedure code 47564 include the stent placement (the code doesn't indicate that it is), or should a separate code be used. Not sure if the code for the stent placement would be 47801 or unlisted code 47579.
Thank you.

re: need help with code

I haven't had a response yet, can anyone help me with this?
Thank you.