CPT® Code 47531

Injection procedure for cholangiography, percutaneous, complete diagnostic procedure including imaging guidance (eg, ultrasound and/or fluoroscopy) and all associated radiological supervision and interpretation; existing access

The CPT® Code 47531 refers to a specific injection procedure for cholangiography, which is a diagnostic imaging technique used to visualize the bile ducts. This procedure is performed percutaneously, meaning it is done through the skin, and is classified as a complete diagnostic procedure. The primary purpose of this procedure is to assess the bile ducts for any abnormalities, such as blockages or strictures, which can impede the flow of bile from the liver to the small intestine. The procedure involves the use of imaging guidance, which may include ultrasound and/or fluoroscopy, to ensure accurate placement of instruments and visualization of the bile ducts. Importantly, this code applies when the injection of contrast medium is performed through an existing access point, such as a transhepatic drainage catheter or a T-tube, that has already been established. This existing access allows for the direct injection of contrast medium into the bile ducts, facilitating the visualization of their structure and function. The procedure also encompasses all associated radiological supervision and interpretation, ensuring that the imaging results are accurately assessed by a qualified professional.