CPT® Code 78231

Salivary gland imaging, specifically referred to as scintigraphy imaging of the salivary glands, involves the use of a radiolabeled isotope tracer to assess the function of the salivary glands, which include the parotid, submandibular, and sublingual glands. These glands are essential exocrine structures located in the oral cavity that secrete saliva, a fluid crucial for food digestion and maintaining oral hygiene. The parotid glands are situated anterior and inferior to the ears, releasing saliva into the mouth through the Stensen ducts. The submandibular glands are found on the floor of the mouth, with saliva being secreted via the Warthin ducts, while the sublingual glands, also located on the floor of the mouth and lateral to the tongue, secrete saliva through both the Warthin and sublingual ducts. During the procedure, an intravenous line is established to inject the radiolabeled tracer into the patient's circulatory system. Following a designated waiting period, the patient is positioned on an imaging table, and a gamma camera is placed over the anterior head and neck area. Scanning is conducted at specific intervals to capture the radioactive energy emitted from the salivary glands, which is then converted into detailed images. This imaging technique is particularly useful for evaluating gland function, determining duct patency, and characterizing any tumors present. It is important to note that CPT® Code 78231 is designated for cases where serial images are obtained, while code 78230 is applicable for limited imaging scenarios. The physician is responsible for interpreting the scintigraphy results and providing a comprehensive written report of the findings.