CPT code 61608 denotes intradural resection of vascular or infectious neoplasms at the base of the middle cranial fossa, including lesions in the parasellar region, cavernous sinus, clivus, or midline skull base. This complex neurosurgical procedure often requires specialized operative teams and may include dural repair with grafting. Nationally, accurate coding of skull base intradural resections affects clinical reporting, hospital billing, and alignment with payer medical necessity reviews for high-acuity surgical services.

Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context and service setting, benchmarking expectations for coding and coverage across major payers, and a summary of policy considerations that commonly influence prior authorization and claim review for complex cranial base procedures. The publication also highlights typical sites of service and the procedural elements captured by the code, helping billing and clinical teams ensure consistent documentation and claim submissions.

The content focuses on national implications for coding practice, payer coverage contours, and what to look for in policy language—without state-specific guidance. Data not available in the input will be noted where relevant in later sections.