CPT® Code 78226

The CPT® Code 78226 refers to a diagnostic imaging procedure known as hepatobiliary system imaging, which includes the evaluation of the gallbladder when it is present. This imaging technique utilizes nuclear medicine to track the production and flow of bile from the liver to the small intestine. The procedure employs a radioactive tracer that is injected into the patient's bloodstream, allowing for the visualization of the liver, bile ducts, and gallbladder, provided the gallbladder has not been surgically removed. Commonly referred to as a HIDA scan, which stands for hepatobiliary iminodiacetic acid scan, this procedure is essential for assessing liver function, particularly in terms of bile production and excretion. It also evaluates the drainage system, including the bile ducts and gallbladder, for any signs of obstruction, inflammation, or other abnormalities. During the procedure, an intravenous catheter is placed to facilitate the injection of the radioactive tracer. A gamma camera is then used to capture multiple images as the tracer flows through the bloodstream, is absorbed by the liver, and subsequently travels through the biliary system. Continuous imaging allows for a comprehensive assessment of the movement of bile from the liver to the gallbladder and into the duodenum. Throughout the procedure, the patient is closely monitored, and upon completion, the physician reviews the obtained images to generate a detailed written report of the findings. This procedure is critical for diagnosing various hepatobiliary conditions and guiding further management.