External antenna accessory for use with an implanted phrenic or diaphragmatic nerve stimulator system

This code represents the external antenna component used in conjunction with an implanted diaphragmatic or phrenic nerve stimulator system. This device is crucial for transmitting power and control signals to the implanted receiver, facilitating diaphragm pacing for patients with respiratory insufficiency. It is an external accessory, not an implanted device itself.

This code is used when billing for the external antenna supplied to a patient who has an implanted diaphragmatic/phrenic nerve stimulator. Documentation should clearly indicate the patient's diagnosis requiring diaphragm pacing (e.g., central hypoventilation syndrome, high spinal cord injury) and the provision of this specific external component. It is typically provided as a replacement or initial supply.

• Do not confuse this external antenna with the implanted components of the diaphragmatic pacing system.
• Ensure documentation specifies the external nature of this component to differentiate it from internal leads or receivers.
• Verify medical necessity for replacement antennas, as payers may have frequency limitations.