CPT code 63078 designates an add-on thoracic discectomy procedure in which a surgeon repairs an additional herniated thoracic disc and places interbody graft material to restore disc space. It is used when multiple thoracic levels require decompression during the same operative session and is billed in conjunction with a primary thoracic discectomy code. The code matters nationally because thoracic disc herniations, while less common than cervical or lumbar herniations, can cause significant pain, radicular symptoms, or myelopathy that necessitate surgical decompression and reconstruction.

Key payers commonly involved in coverage decisions include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find clinical context about the procedure and typical sites of service, as well as a concise framework for interpreting how this add-on code fits into operative reporting. The publication provides benchmarks and coding relationships relevant to surgical spine service lines, highlights common billing and documentation considerations, and summarizes where to find authoritative guidance for coding and reimbursement. Data not available in the input is noted where applicable.