CPT® Code 78232

A salivary gland function study, as described by CPT® Code 78232, is a diagnostic procedure that evaluates the performance of the salivary glands, which include the parotid, submandibular, and sublingual glands. These exocrine glands are essential components of the oral cavity, responsible for the secretion of saliva, a fluid that plays a crucial role in the digestion of food 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 located on the floor of the mouth, with saliva being secreted via the Warthin ducts. Similarly, the sublingual glands, also found on the floor of the mouth and lateral to the tongue, secrete saliva through both the Warthin and sublingual ducts. The function study of these glands is particularly valuable in diagnosing conditions such as Sjogren's syndrome, which is characterized by dry mouth (xerostomia), and can also identify duct obstructions caused by stones, inflammation, or tumors. The procedure involves the establishment of an intravenous line through which a radiolabeled isotope tracer is injected 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 occurs at specific intervals to capture the radioactive energy emitted from the salivary glands, which is then converted into images for analysis. To further stimulate saliva production, the patient is administered lemon juice orally, prompting the glands to secrete saliva into the mouth, after which a second set of images is obtained. The physician interprets the results of the salivary gland function study and compiles a comprehensive written report detailing the findings.