The HCPCS codes are: E0481 (Intrapulmonary percussive ventilation system and related accessories), and E1399 (Durable medical equipment, miscellaneous [when specified as a combination continuous positive expiratory pressure (CPEP) and continuous high frequency oscillation (CHFO) device such as the Volara System for oscillation and lung expansion (OLE) therapy]
I hope this helps.