CPT® Code 64584

Removal of hypoglossal nerve neurostimulator array, pulse generator, and distal respiratory sensor electrode or electrode array

The procedure described by CPT® Code 64584 involves the surgical removal of a hypoglossal nerve neurostimulator array, pulse generator, and distal respiratory sensor electrode or electrode array. A hypoglossal nerve stimulator is a medical device implanted to treat moderate to severe obstructive sleep apnea (OSA), a condition characterized by repeated episodes of airway obstruction during sleep, often caused by the relaxation of the tongue which can block the throat. The device functions by detecting the patient's breathing patterns and delivering electrical impulses to the hypoglossal nerve, which in turn stimulates the tongue to move forward, thereby keeping the airway open and facilitating normal breathing during sleep. The components of the device include a pulse generator, which is a small device similar in size to a quarter, a breathing sensor that detects inhalation, and a stimulation electrode that is placed around the hypoglossal nerve. These components are interconnected by tunneled electrical leads, allowing for a remote-controlled and programmable operation. The patient activates the device before sleep to ensure the stimulation occurs as needed. In cases where the device malfunctions or becomes infected, surgical intervention may be required to revise or replace the components. If a complete removal of the device is necessary, the procedure is performed through the original incision sites to safely extract the pulse generator, chest sensor, and hypoglossal stimulator electrode.