CPT code 63101 denotes a thoracic corpectomy performed via a lateral extracavitary (LECA) approach to remove part or all of a thoracic vertebral body and adjacent disc material. This complex spinal surgery is used to relieve pressure on the spinal cord and spinal nerves and often includes instrumentation to stabilize the spine. Nationally, procedures represented by this code are clinically significant because they address fractures, tumors, and deformities that threaten neurological function and mobility.

Key payers relevant to reimbursement and policy review include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Coverage, prior authorization, and facility requirements vary across these payers and can affect site-of-service decisions and billing workflows.

Readers will find a concise overview of the clinical context and service characteristics for CPT code 63101, plus a summary of the payer landscape and common billing modifiers used with complex spine procedures (listed in the input). The publication also outlines typical sites of service and what to expect in terms of coding focus areas: medical necessity for decompression, concurrent stabilization, and documentation elements that support the use of this code. Data not provided in the input (such as specific ICD-10 pairings, payer-specific policies, and associated taxonomies) are noted as unavailable.