CPT® Code 69805

An endolymphatic sac operation is a surgical procedure aimed at addressing Meniere's disease, a condition characterized by episodes of vertigo, fluctuating hearing loss, tinnitus, and a sensation of fullness in the ear. This operation can be performed with or without the placement of a shunt. In the case of CPT® Code 69805, the procedure is conducted without a shunt. The surgery involves the opening of the mastoid bone, which is located behind the ear. During the operation, the sigmoid sinus, an S-shaped cavity situated behind the mastoid bone, is carefully denuded of bone, leaving a small area known as Bill's island intact. This removal of bone is crucial as it allows the endolymphatic sac to expand, thereby alleviating the pressure that is believed to contribute to the symptoms associated with Meniere's disease. The endolymphatic sac, which is located behind the semicircular canal, is then exposed, and the surgical intervention focuses on relieving the symptoms by addressing the underlying issues within the inner ear.