CPT® Code 47712

The CPT® Code 47712 refers to the excision of a tumor located in the intrahepatic bile duct, which is the segment of the bile duct situated within the liver. Bile duct tumors are relatively uncommon and can be classified as either benign or malignant, with malignant tumors being more prevalent. The distinction between intrahepatic and extrahepatic bile duct tumors is significant; extrahepatic tumors occur outside the liver, while intrahepatic tumors are found within the liver itself. Due to the higher likelihood of malignancy and the potential for metastasis associated with intrahepatic bile duct tumors, local excision is not frequently performed. When this procedure is indicated, it involves making a midline abdominal incision to access the gallbladder and liver, allowing for the identification of the bile duct tumor. The surgical approach includes transecting the bile duct both above and below the tumor, followed by the excision of the tumor along with the affected bile duct segment. After excision, the bile duct may be repaired by suturing the remaining ductal ends together or through alternative reconstruction techniques, such as a Roux-en-Y hepaticojejunostomy, which may be reported separately. It is important to note that CPT® Code 47711 is designated for the excision of extrahepatic bile duct tumors, while CPT® Code 47712 specifically pertains to intrahepatic bile duct tumors.