CPT® Code 69716

Implantation, osseointegrated implant, skull; with magnetic transcutaneous attachment to external speech processor, within the mastoid and/or resulting in removal of less than 100 sq mm surface area of bone deep to the outer cranial cortex

The procedure described by CPT® Code 69716 involves the implantation of an osseointegrated implant in the skull, specifically designed for individuals with hearing loss. This procedure utilizes a magnetic transcutaneous attachment that connects to an external speech processor, which amplifies sound for the patient. The osseointegrated implant is anchored to the skull, allowing sound vibrations to be transmitted through the bone directly to the cochlea, thereby facilitating improved auditory perception. The implantation is performed within the mastoid area, which is a part of the temporal bone located behind the ear. It is crucial that the mastoid is healthy and that the patient's hearing loss is not attributed to chronic infections, as these conditions could complicate the procedure and its outcomes. During the surgery, a specific area of less than 100 square millimeters of bone is removed, which is deep to the outer cranial cortex, to create a well for the implant. The surgical site is carefully planned to ensure optimal placement of the device, typically at a height that aligns with the top of the auricle, approximately 5.5 cm behind the ear canal. The procedure requires meticulous dissection and preparation of the site to accommodate the implant components, ensuring that the device can effectively merge with the living tissue over time. This integration process is essential for the long-term success of the implant, as it allows for stable attachment and effective sound transmission through the bone conduction system.