Orthotics (leg, arm, back, and neck braces). Enteral/parenteral nutrition. DME (and related accessories and supplies other than drugs), such as oxygen and oxygen equipment, wheelchairs, infusion pumps, and nebulizers. 4 Vision items and services, such as prosthetic lenses. Other items and services that are statutorily excluded from Medicare coverage for which CMS or other government or private insurers have identified a claims processing need for a HCPCS Level II code, such as hearing aids. These HCPCS processes would not apply to items and services described in the oral health and dentistry ...