CPT code 95929 denotes a central motor evoked potential study performed by transcranial electrical stimulation of the motor cortex to evaluate motor pathways to the lower limbs. This neurophysiology diagnostic procedure is used in preoperative monitoring, intraoperative assessment, and diagnostic evaluation of suspected central motor pathway dysfunction. Nationally, accurate coding for 95929 impacts clinical documentation, facility workflow, and appropriate payer adjudication for specialized neurodiagnostic testing.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a compact overview of what 95929 represents clinically, typical sites of service where it is performed, and which payers commonly cover or adjudicate claims for this type of neurophysiology testing. The section outlines common modifiers and administrative considerations relevant to billing; however, specific payer policies and coverage criteria vary.

This publication provides clinical context for the procedure, benchmarks for coding and billing practices, and highlights policy considerations that affect national reimbursement and utilization. It is intended for coding professionals, billing managers, neurophysiology teams, and policy analysts needing a concise reference for CPT code 95929.