Ask Dr. Z

Hi Dr Z, I need help with coding this case. The diagnoses are Lymphatic leak/cholothorax. Bilateral cutdowns were done on the dorsum of each foot, lymphatic channels were cannulated and Ethiodol was slowing injected for 1 hour with fluoroscopy used to observe lymphatic flow. Diagnostic lymphangiogram under fluoroscopy of the pelvic, abdominal, thoracic and neck areas was done. Extravasation was noted at the L1/L2 level. The abdomen was prepared. Using direct stick technique under fluoro guidance the area of extravasation was directly studied. Embolization was then performed using nBCA. Is 37204 appropriate here or should an unlisted lymphatic code be used?