CPT code 90584 denotes a quadrivalent live dengue vaccine administered subcutaneously on a two-dose schedule to prevent dengue virus infection. As dengue prevention gains attention in immunization programs, a dedicated vaccine code enables standardized billing, tracking of vaccine uptake, and clearer communication among providers, payers, and public health entities. The code applies to outpatient immunization services typically delivered in clinics, primary care offices, public health clinics, or specialized immunization centers.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise national overview of the clinical context for dengue vaccination, what CPT code 90584 represents for billing workflows, and the practical implications for outpatient vaccine delivery. The publication summarizes available benchmarks where present, highlights policy and coverage considerations relevant to major payers, and outlines common billing elements associated with vaccine administration. Data not available in the input is noted where applicable. This piece is intended to inform billing staff, immunization program managers, and policy analysts about the coding and service context for the dengue vaccine represented by CPT code 90584.