A surgically implantable electronic medical device that replaces the function of the inner ear by converting acoustic signals into electronic signals and sending the electronic signals to the brain. Individuals who have moderate to severe sensorineural hearing loss or worse and have little benefit from hearing aids are ideal candidates. Individuals who have private health insurance covering surgically prostheses are covered for the cost of the cochlear implant system. Coverage of the surgical procedure and hospital cost will depend on the level of private health fund. The state government funds a limited number of cochlear implants each year. Future Cochlear Implant adjustments are bulk-billed.