2007 ICD-9-CM Procedure 51.13 Open biopsy of gallbladder or bile ducts 51.13 is a specific code that can be used to specify a procedure 51.13 contains 3 index entries View the full Volume 3 51.* hierarchy Index entries containing 51.13: Biopsy bile ducts 51.14 open 51.13 gallbladder 51.12 open 51.13 sphincter of Oddi 51.14 open 51.13