2007 ICD-9-CM Procedure 54.25 Peritoneal lavage Washing out of the peritoneal cavity. The procedure is a diagnostic as well as a therapeutic technique following abdominal trauma or inflammation. 54.25 is a specific code that can be used to specify a procedure 54.25 contains 2 index entries View the full Volume 3 54.* hierarchy 54.25 also known as: Diagnostic peritoneal lavage 54.25 excludes: peritoneal dialysis (54.98) Index entries containing 54.25: Irrigation peritoneal 54.25 Lavage peritoneal (diagnostic) 54.25