CPT® Code 75980

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The CPT® Code 75980 refers to the procedure of percutaneous transhepatic biliary drainage, which is performed under radiological supervision and interpretation. This procedure is primarily indicated for patients experiencing obstructions in the bile duct, which can arise from various conditions such as gallstones, tumors, infections, cirrhosis, or trauma. The process begins with the insertion of a small needle through the skin at the site where a catheter or stent will be placed, allowing access to the bile duct. Once the needle is in position, contrast media is injected to verify the correct location within the bile duct. Following this, a guidewire is introduced through the needle, which is then removed, allowing for the insertion of a catheter over the guidewire. This catheter is utilized to navigate the bile duct, and any strictures encountered during the procedure are dilated to facilitate drainage. In cases where an internal and external biliary drain is necessary, the drain is positioned such that its drainage holes are situated above the stricture. If the drain cannot be maneuvered past the obstruction, an external drain is placed proximal to the blockage. Should a stent be required for drainage, it is advanced to the stricture site over a guidewire and expanded within the bile duct to alleviate the narrowing, thereby enabling the blocked bile duct to drain into the small intestine. The stent is designed with a second portion that exits the skin, allowing for external drainage. After the catheter placement, additional contrast is injected to confirm the patency of the bile duct. The code 75980 encompasses the radiologist's role in supervising the procedure, interpreting the findings, generating a written report, and consulting with referring physicians regarding the diagnosis and potential need for further interventions.