CPT® Code 69840

Deleted

The CPT® Code 69840 refers to a revision fenestration operation, which is a surgical procedure aimed at modifying or correcting a previously performed fenestration of the semicircular canal. Fenestration procedures were historically utilized to address conductive hearing loss by creating an opening in the semicircular canal, allowing sound to bypass the stapes footplate and facilitating sound transmission to the cochlea. The procedure typically involves a transmastoid approach, where the mastoid bone is accessed through the ear canal. During the initial fenestration, a small hole is created in the lateral semicircular canal, and a fascial graft is placed over this opening to maintain its function. In the case of CPT® Code 69840, the focus is on revising an existing fenestration, which may include reopening the original fenestration site, replacing the graft, or potentially creating a new fenestration if necessary. This procedure is less common in contemporary practice compared to its historical use, reflecting advancements in treatment options for hearing loss.