CPT® Code 61595

Transtemporal approach to posterior cranial fossa, jugular foramen or midline skull base, including mastoidectomy, decompression of sigmoid sinus and/or facial nerve, with or without mobilization

The CPT® Code 61595 refers to a surgical procedure known as a transtemporal approach to the posterior cranial fossa, jugular foramen, or midline skull base. This complex procedure involves a C-shaped incision that begins above the ear and extends in a wide arc around the ear and down the neck. The primary goal of this approach is to access critical structures located in the posterior cranial fossa, which may include the jugular foramen and the midline skull base. The procedure typically includes a mastoidectomy, which is the surgical removal of the mastoid bone, and may involve decompression of the sigmoid sinus and/or the facial nerve. The term 'decompression' refers to relieving pressure on these vital structures, which can be necessary in cases of tumors, vascular malformations, or other pathologies. The procedure may also involve mobilization of surrounding tissues to ensure optimal access and visibility during surgery. The careful dissection and protection of neurovascular structures, such as the internal carotid artery and internal jugular vein, are critical components of this operation, ensuring that the risk of complications is minimized while effectively addressing the underlying condition. This procedure is typically performed by neurosurgeons or otolaryngologists with specialized training in skull base surgery.