What code can be used to bill a sleep apnea appliance? I thought a D7880? I was told D9940. The NDAS does not give a fee for sleep apnea orthodic devices, what is usually charged? twice more than the occlusal guard?

Since there is no specific code for sleep apnea appliance the most appropriate code is D5999. You must submit a breif narrative along with the use of this code. The fee varies from region to region, if it is not listed in the NDAS the rule of thumb is to price the procedure 150% above the approved medicaid fee.