READER QUESTIONS:
Code 1 Channel + Both Sides as Bilateral With 95865
Published on Mon May 25, 2009
Question: My neurologist performed an electromyography (EMG) on the laryngeal muscles via a special endotracheal tube with tracing electrodes. These measure one channel of EMG from both sides of the larynx. So this is bilateral monitoring with a single channel, but is it considered unilateral or bilateral cranial nerve EMG testing? Washington Subscriber Answer: The laryngeal muscles have innervation from the recurrent laryngeal nerves which originate from the vagus nerve (Cranial nerve X). Laryngeal EMG testing is used to diagnosis laryngeal movement disorders or evaluate trauma to the recurrent laryngeal nerves. Additionally they are often monitored during surgical procedures on the neck, including thyroid surgery. In 2006, CPT created a new code, 95865 (Needle electromyography; larynx) specifically for EMG testing of the larynx. According to the January 2007 CPT Assistant, physicians should report CPT code 95865 for this diagnostic study rather than either of the cranial nerve supplied muscle EMG [...]