2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Malignant Neoplasm Of Digestive Organs And Peritoneum 150-159 > ICD-9-CM Diagnosis 156 Malignant neoplasm of gallbladder and extrahepatic bile ducts 156 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 156.0 Malignant neoplasm of gallbladder Primary or metastatic malignant neoplasm of the gallbladder. 156.0 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 156.1 Malignant neoplasm of extrahepatic bile ducts A malignant tumor involving the extrahepatic bile duct. -- 2003 156.1 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 156.2 Malignant neoplasm of ampulla of vater Malignant neoplasm originating in the ampulla of Vater. 156.2 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 156.8 Malignant neoplasm of other specified sites of gallbladder and extrahepatic bile ducts 156.8 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 156.9 Malignant neoplasm of biliary tract part unspecified site 156.9 is a specific code that can be used to specify a diagnosis