CPT code 96450 denotes intrathecal chemotherapy administration via spinal puncture into the central nervous system. This procedure is clinically significant for treating malignancies with CNS involvement or for prophylactic CNS-directed chemotherapy. Accurate coding for intrathecal administration is important for tracking utilization of high-acuity oncologic procedures and for aligning clinical documentation with payer coverage policies.

Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code’s clinical context, typical sites of service, and the service type represented by the code. The publication outlines national benchmarking considerations, common billing modifiers associated with procedural services, and policy implications that affect prior authorization, coverage determinations, and billing compliance.

The report provides operational guidance for revenue cycle teams and clinical documentation specialists on how this intrathecal chemotherapy service is captured in claims data, highlights areas where documentation should support the medical necessity of CNS-directed therapy, and summarizes coding relationships and related procedural contexts. Data not available in the input is noted where applicable.