CPT® Code 74320

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The procedure described by CPT® Code 74320 refers to a cholangiography performed percutaneously and transhepatically, which involves the use of radiological supervision and interpretation. In this procedure, a physician administers a contrast dye into the bile duct, which is a tube that carries bile from the liver to the gallbladder and small intestine. The injection of the dye enhances the visibility of the bile duct on X-ray images, allowing for a clearer assessment of its structure and any potential abnormalities. The radiological supervision indicates that a qualified radiologist oversees the imaging process, ensuring that the procedure is conducted safely and effectively. The interpretation of the X-ray images is crucial, as it helps in diagnosing conditions such as blockages, strictures, or other pathologies affecting the bile duct system. This procedure is typically performed when there is a need to investigate issues related to bile flow or to guide further treatment options based on the findings from the imaging results.