CPT® Code 61330

The CPT® Code 61330 refers to the procedure known as "Decompression of orbit only, transcranial approach." This surgical intervention is specifically designed to relieve pressure within the orbit, which is the bony cavity that houses the eye. The transcranial approach involves accessing the orbit through the skull, typically by removing a portion of the frontal bone. This method allows surgeons to reach the superomedial aspect of the orbit, which is crucial for addressing various lesions or defects located at the orbital apex, optic canal, or those that may involve both the orbit and adjacent intracranial structures. The procedure is characterized by a bicoronal incision, which is made across the scalp, enabling the reflection of the scalp to expose the underlying bone. The careful placement of burr holes and the use of a bone saw facilitate the removal of the frontal bone while preserving the orbital rim, allowing for adequate access to the affected areas. Throughout the procedure, meticulous attention is given to the dura mater, the protective covering of the brain, to prevent injury and ensure proper reconstruction of the orbital structures post-operation. This comprehensive approach is essential for alleviating pressure on critical ocular components, including the eye and optic nerve, thereby restoring function and alleviating symptoms associated with orbital compression.