· There is no code to report laparoscopic unroofing of a liver cyst, and therefore code 47379, Unlisted laparoscopic procedure, liver, is reported (crosswalk fee to 47010, Hepatotomy, for open drainage of abscess or cyst, 1 or 2 stages ). ... Preferred Name. The patient underwent a laparoscopic cholecystectomy, but the surgeon also did an open ....