© Copyright 2026 American Medical Association. All rights reserved.
A revision mastoidectomy is a surgical procedure aimed at addressing complications arising from previous mastoid surgeries, specifically to remove infected mastoid air cells. The mastoid process, which is a bony structure located behind the ear, is an extension of the temporal bone of the skull. Within this bony area, there are numerous mastoid air cells that can become infected, leading to various ear-related health issues. During the procedure, a surgical incision is made behind the ear to expose the mastoid bone. The surgeon then inspects the remaining mastoid air cells to assess the extent of infection and determine the necessary surgical intervention. In the case of CPT® Code 69601, the revision results in a complete mastoidectomy, which involves the total removal of the air cell system along with any purulent matter, debris, and infected tissue present. This procedure is typically indicated for acute infections that have not responded to other treatments. Additionally, a drain may be placed post-operatively to facilitate continued drainage of any residual fluid or infection. This procedure is critical for restoring ear health and preventing further complications associated with chronic mastoid infections.
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