CPT code 96423 denotes an add-on procedure for intra-arterial chemotherapy infusion, billed for each additional hour of arterial infusion. This procedure-level code matters nationally because intra-arterial delivery of chemotherapy is used for targeted oncologic therapies that may require extended infusion time, influencing facility workflow, resource utilization, and payer reimbursement practices. Accurate reporting of add-on time-based infusion codes affects payment, quality measurement, and clinical documentation.

Key payers in typical national analyses include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code’s clinical meaning and service setting, plus what to expect from payer coverage policies and billing practice benchmarks. The publication summarizes common modifiers and specified billing conventions, outlines sites of service where the procedure is typically performed, and highlights implications for reporting time-based add-on chemotherapy services. This content is intended to inform billing staff, oncology practice managers, and health policy analysts about the operational and documentation context tied to CPT code 96423.

Data not available in the input for associated taxonomies, ICD-10 diagnoses, related codes, and detailed payer-specific policy variations.