CPT® Code 47538

Placement of stent(s) into a bile duct, percutaneous, including diagnostic cholangiography, imaging guidance (eg, fluoroscopy and/or ultrasound), balloon dilation, catheter exchange(s) and catheter removal(s) when performed, and all associated radiological supervision and interpretation; existing access

The procedure described by CPT® Code 47538 involves the placement of stent(s) into a bile duct through a percutaneous approach, which means that the procedure is performed through the skin. This intervention is primarily aimed at relieving obstructions in the bile duct, allowing bile to flow freely into the small intestine. The procedure includes several critical components: diagnostic cholangiography, which is an imaging technique used to visualize the bile ducts; imaging guidance, such as fluoroscopy or ultrasound, to assist in the accurate placement of the stent; and various steps like balloon dilation, catheter exchanges, and catheter removals, if necessary. Importantly, this procedure is performed using existing access, which typically refers to a previously placed transhepatic drainage catheter or T-tube that has already been secured in place. This existing access simplifies the process, as it eliminates the need for creating a new entry point into the bile duct. The overall goal of this procedure is to ensure that the bile duct remains open, thereby facilitating the normal flow of bile and preventing complications associated with bile duct obstructions.