CPT® Code 61519

The procedure described by CPT® Code 61519 involves a craniectomy specifically for the excision of a meningioma located in the infratentorial region of the brain, which is situated below the tentorium cerebelli and encompasses the cerebellum and brainstem. A craniectomy is a surgical operation that entails the removal of a portion of the skull to access the brain. This procedure begins with the creation of scalp flaps, which allows the surgeon to gain access to the underlying bone. Burr holes are drilled into the skull, and the bone between these holes is then cut using a specialized saw or craniotome. The resulting bone flap is elevated and removed, either temporarily or permanently, to expose the brain tissue beneath. In the context of this procedure, the focus is on the excision of a meningioma, a type of tumor that arises from the meninges, the protective membranes covering the brain and spinal cord. Meningiomas are typically slow-growing and are often benign, although malignant forms can occur, albeit infrequently. The surgical approach involves careful dissection to locate and expose the meningioma, followed by the identification and coagulation of its arterial feeders to prevent excessive bleeding. The goal is to completely resect the tumor, which may involve removing any affected dura mater and hyperostotic bone. Post-excision, the dura is repaired to prevent cerebrospinal fluid leakage, and the skull defect is addressed by placing the bone flap back or using alternative materials. Finally, the scalp flap is reapproximated, and the skin incision is closed, completing the procedure.