CPT code 63170 represents laminectomy with myelotomy, commonly known as DREZ lesioning, a neurosurgical procedure that destroys the posterolateral portion of the spinal cord to treat chronic, severe neuropathic pain unresponsive to conservative therapies. The code captures a specialized, high-acuity operative intervention with implications for surgical services, inpatient resource utilization, and pain-management policy nationally.

Key payers covered include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the procedure, common payer coverage considerations, typical sites of service, and how CPT code 63170 is used in billing for complex neurosurgical pain interventions. The publication outlines benchmarks where available, notes areas with limited public data, and summarizes relevant policy and coverage themes affecting access to DREZ lesioning. The goal is to inform clinicians, billing staff, and policy analysts about the clinical intent of the code, expected service setting, and payer landscape at a national level.