CPT® Code 69715

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Implantation, osseointegrated implant, temporal bone, with percutaneous attachment to external speech processor/cochlear stimulator; with mastoidectomy

An osseointegrated implant is a specialized device that is surgically placed in the temporal bone of the skull. This procedure involves the attachment of the implant to an external speech processor or cochlear stimulator through a percutaneous method, which means that the attachment occurs through the skin. The primary purpose of this type of implant is to restore hearing in individuals who experience hearing loss due to conditions affecting the middle ear and cochlea. The procedure begins with careful measurement and marking of the skin over the intended implantation site to ensure optimal placement of the implant. Following this, an incision is made in the skin to expose the mastoid complex, which is the area of bone located behind the ear. During the surgery, skin and periosteal flaps are created to provide access to the bone. A pilot hole is then drilled into the temporal bone, which is gradually enlarged to accommodate the implant. Once the site is prepared, the implant is securely placed into the bone. The skin flap is then perforated to facilitate the connection to the external speech processor or cochlear stimulator. After the implant is in place, the surrounding soft tissues are reduced in thickness to ensure a proper fit before the wound is closed. It is important to note that this specific procedure, identified by CPT® Code 69715, includes a mastoidectomy, which involves the removal of infected and diseased air cells from the mastoid area, allowing for better exposure of non-aerated segments of the mastoid prior to the implantation of the device. This distinguishes it from similar procedures, such as CPT® Code 69714, where the mastoidectomy is not performed.