Auditory Brainstem Implants

Auditory Brainstem Implants - MC

Definitions
Auditory Brainstem Implant (ABI) is similar to a cochlear implant, but the electrode is implanted in the brainstem, rather than the cochlea of the ear. This brainstem electrode is placed next to the cochlear nuclei. The electrode is connected to an external microphone and processor, which allows the patient to identify sound.

Neurofibromatosis type 2 (NF2) is a genetic disorder related to defects in chromosome 22. NF2 causes tumors to grow on the beginning and ending of nerves. Tumors can grow on both auditory (hearing) nerves. When these tumors are removed, the patient becomes deaf.

Coverage
Auditory brainstem implants is not covered at this time, as it is considered experimental / investigative.

Administrative Process
Does not require prior approval.

Products
This policy applies:

to all products administered by Medicare

Number: A019MC-01; Approved: Medical Director Committee and Benefits Committee; Approved 02/10/98; Revised 09/01/01; Annual Review 09/01/01.

Details of the Medicare Coverage Issues Manual, and the Medicare National Coverage Decisions Index with the bibliography of related research that supports these policies can be viewed at: http://www.hcfa.gov/pubforms/06_cim/ci00.htm or http://hcfa.gov/coverage/8e.htm .