CMS is adding 31 power mobility device Healthcare Common Procedure Coding System (HCPCS) codes to the list of durable medical equipment, prosthetics, orthotics, and supplies (DMEPOS) items that require prior authorization as a condition of Medicare payment. All of the new codes are currently included in the Medicare Prior Authorization for Power Mobility Devices (PMDs) Demonstration, a 19-state demonstration with similar, but not identical, prior authorization requirements that runs through August 31, 2018. The expanded code list is effective September 1, 2018.