CPT® Code 78650

Cerebrospinal fluid (CSF) leakage detection and localization is a diagnostic procedure aimed at identifying and pinpointing leaks of cerebrospinal fluid, which is crucial for the protection and cushioning of the brain and spinal cord. CSF leaks can occur due to various reasons, including trauma or spontaneous events that lead to defects in the bony structures of the skull, resulting in disruption of the meningeal layers, specifically the dura mater and pia-arachnoid mater. The most frequently observed sites for these leaks are the nasal passages, known as CSF rhinorrhea, and the ear, referred to as CSF otorrhea. The procedure utilizes scintigraphy, a nuclear imaging technique, in conjunction with a radiolabeled isotope tracer that is injected intrathecally. This tracer allows for the visualization of CSF flow and leakage. During the procedure, the patient is positioned on an imaging table, and a gamma camera is placed over the area of interest. Scanning is conducted at predetermined intervals to capture the radioactive emissions from the tracer, which are then converted into images for analysis. The physician interprets these images and compiles a comprehensive written report detailing the findings, which is essential for further clinical decision-making.