CPT code 61860 defines the neurosurgical placement of neurostimulator electrodes on the cerebral cortex after removal of a portion of the skull. This invasive operative code captures a specialized neuromodulation procedure used in select patients for seizure control, pain management, or experimental neuromodulation therapies. Nationally, the code matters because it represents high-acuity, resource-intensive care with implications for surgical staffing, facility resources, and device coverage.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context, typical sites of service, and common billing considerations tied to this procedure. The publication outlines benchmarks for utilization and reimbursement patterns where available, summarizes relevant coding and policy updates that affect coverage and documentation, and highlights clinical factors that influence coding and payer decisions. Data on specific payer policies, prior authorization requirements, and payment rates are summarized when available; if not provided in the source, the reader is informed that detailed payer-specific data are not included. The analysis is intended for a national audience of billing professionals, neurosurgeons, revenue-cycle staff, and policy analysts seeking a clear reference for CPT code 61860 and its role in surgical neurostimulation care.