2007 ICD-9-CM Procedure 91.0 Microscopic examination of specimen from liver, biliary trace and pancreas 91.0 is a non-specific code that should not be used to specify a procedure 91.0 contains 4 index entries View the full Volume 3 91.* hierarchy Index entries containing 91.0: Examination (for) microscopic (specimen) (of) 91.9 bile ducts 91.0 gallbladder 91.0 liver 91.0 pancreas 91.0