Ask Dr. Z

If an Amplatzer plug is placed after the removal on an internal/external biliary drain, would this be an embolization of the hepatic parenchyma? What code would we use for the embolization of parenchyma? "Removal of internal/external biliary drain and placement of metallic biliary stents in a patient with malignant distal common bile duct obstruction. Because the tube tract was not mature, and because the patient has ascites, the hepatic parenchymal tube tract was occluded with an Amplatzer plug."