CPT code 63185 represents a surgical rhizotomy performed through laminotomy or laminectomy under general anesthesia to section spinal nerve roots for relief of neuromuscular symptoms. This procedure is clinically significant due to its role in treating refractory pain and spasticity when conservative therapies have failed, and it has implications for surgical capacity, anesthesia services, and post-operative care nationally. Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical context and typical settings for the service, an outline of common billing modifiers and their relevance, and notes on payer coverage patterns where available. The publication also summarizes expected service lines and site-of-service considerations, and highlights where input data are not available. This resource is intended to help coding, billing, and policy professionals quickly understand the purpose of the code, typical clinical usage, and the payer landscape relevant to CPT code 63185.