CPT code 61611 is an add-on neurosurgical procedure code for transection or ligation of the carotid artery in the petrous canal when performed during removal of an extradural or intradural lesion. It is reported only in conjunction with primary cranial approach codes 61605–61608 and does not include carotid artery repair. Nationally, this code captures a high-complexity intraoperative vascular maneuver that typically occurs in tertiary care or specialized neurosurgical centers and can affect resource use, operative planning, and documentation requirements.

Key payers included in this overview are Aetna, Blue Cross Blue Shield, Cigna, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical context for using the code, common settings where the procedure is performed, and the role of the code as an add-on to primary cranial procedure codes. The publication summarizes benchmarking considerations, coding and billing implications for hospitals and neurosurgery practices, and areas where policy updates or payer-specific adjudication rules may influence reimbursement. Data not available in the input is noted where applicable, and the content focuses on national-level implications rather than state-specific guidance.