CPT code 61582 denotes a craniofacial surgical approach to the anterior cranial fossa to expose extradural lesions or defects at the skull base. This complex neurosurgical procedure involves unilateral or bilateral craniotomy, frontal lobe elevation, and osteotomy of the anterior cranial fossa base to permit access to lesions located outside the dura. The code matters nationally because it captures high-complexity skull base work that carries significant resource utilization, perioperative risk, and implications for payer coverage and facility credentialing. Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.

Readers will find a concise overview of the clinical intent of the code, typical sites of service, and the procedural components bundled into the code. The publication also summarizes payer coverage considerations and common billing modifiers used with this type of neurosurgical service. Clinical context covers indications for extradural anterior skull base lesions and procedural selection factors. Policy and billing context addresses national implications for reimbursement, inpatient versus ambulatory settings, and documentation elements that commonly underpin medical necessity determinations. Data not available in the input for taxonomies, ICD-10 diagnoses, and related codes is noted where applicable.