2007 ICD-9-CM Procedure 54 Other operations on abdominal region 54 is a non-specific code that should not be used to specify a procedure View the full Volume 3 54.* hierarchy Code also any application or administration of an adhesion barrier substance (99.77) 54 includes: operations on: epigastric region flank groin region hypochondrium inguinal region loin region male pelvic cavity mesentery omentum peritoneum retroperitoneal tissue space 54 excludes: female pelvic cavity (69.01-70.92) hernia repair (53.00-53.9) obliteration of cul-de-sac (70.92) retroperitoneal tissue dissection (59.00-59.09) skin and subcutaneous tissue of abdominal wall (86.01-86.99)