Unfortunately hearing aids are not generally covered by health insurance companies. Although they’re definitely medically necessary, most patients have to pay out of their own pockets. There are, a few exceptions:
Medicaid will pay for the diagnosis and treatment of hearing loss for eligible children and young adults ages 21 and under. Also, children may be covered by their state’s early intervention program or State Children’s Health Insurance Program (SCHIP).
For older adults, medicare does not cover hearing aids; however, diagnostic evaluations are covered if they are ordered by a physician for the purpose of assisting the physician in developing a treatment plan. Since Medicare has declared the BAHA a prosthetic device and not a hearing aid, Medicare will cover the BAHA if other coverage policies are met.
Source: National Institute on Deafness and Other Communication Disorders