CPT code 61108 denotes a neurosurgical procedure to create one or more skull openings (burr holes) to evacuate a surface hematoma and relieve intracranial pressure. The procedure is clinically significant nationwide because it addresses life-threatening intracranial hemorrhage from trauma or iatrogenic causes and often determines short-term neurologic outcomes. It is typically performed emergently in inpatient settings such as operating rooms, emergency departments, or intensive care units.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical intent and typical settings for the service, a summary of common billing and coding considerations, and an overview of payer coverage patterns and benchmark context where available. The publication highlights relevant procedural context, common modifiers in use, and areas where policy or prior authorization rules commonly affect access and reimbursement. Where payer-specific policy language is not provided, the report notes that data were not available in the input. The goal is to give clinicians, coding professionals, and policy analysts a clear, national-level primer on the clinical service represented by CPT code 61108 and the typical billing environment surrounding emergency cranial hematoma evacuation.