CPT code 63620 denotes an externally delivered ionizing radiation procedure targeting and destroying a single spinal lesion. The code is used to report focused radiation ablation of a spinal lesion and is clinically significant for oncology, neurosurgery, and radiation oncology services because it documents high-complexity, site-specific therapeutic radiation. Nationally, accurate coding for procedures such as 63620 affects clinical registries, utilization tracking, and payment for advanced radiation services.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise review of what the code represents, typical sites of service, and the clinical context in which it is used. The publication provides benchmarks and policy context relevant to coverage and billing for focused spinal radiation procedures, highlights common modifiers used with this service, and outlines documentation considerations and associated coding relationships. The content is intended to support revenue cycle, clinical, and policy audiences in understanding how 63620 fits into care pathways for patients receiving targeted spinal radiation therapy.