CPT® Code 69728

Removal, entire osseointegrated implant, skull; with magnetic transcutaneous attachment to external speech processor, outside the mastoid and involving a bony defect greater than or equal to 100 sq mm surface area of bone deep to the outer cranial cortex

The procedure described by CPT® Code 69728 involves the complete removal of an entire osseointegrated implant from the skull, specifically one that features a magnetic transcutaneous attachment to an external speech processor. This type of implant is designed to facilitate bone conduction of sound, allowing sound vibrations to be transmitted through the bone to the cochlea, thereby aiding individuals with hearing loss. The external speech processor, which is magnetically attached to the implant, is situated beneath a thin layer of skin, making it a minimally invasive option for sound amplification. The removal of such an implant may be necessitated by various factors, including persistent pain, infection, instability of the implant, trauma, or failure of the implant to properly integrate with the bone (osseointegration). The procedure is typically performed in the area behind the ear, specifically within the mastoid region or the retrosigmoid area, and involves careful surgical techniques to ensure the surrounding tissues are preserved while effectively removing the implant. This procedure is particularly complex due to the involvement of a bony defect that is greater than or equal to 100 square millimeters in surface area, which requires meticulous attention to detail during the surgical process.