CPT® Code 90584

The CPT® Code 90584 refers to the quadrivalent dengue vaccine, which is a live attenuated vaccine designed for subcutaneous administration. Unlike immune globulins that offer short-term, passive immunity, this vaccine provides active, long-term immunity. It does so by exposing the recipient's immune system to modified versions of the dengue virus, prompting the body to produce its own antibodies. This immunological response enables the body to "remember" how to generate these antibodies upon future exposure to the dengue virus. Dengue fever, also known as breakbone fever, is a mosquito-borne illness characterized by high fever, rash, and intense muscle and joint pain. In severe cases, it can lead to life-threatening complications such as bleeding and shock. Individuals with a history of dengue infection are at an increased risk for severe disease upon subsequent infections. The quadrivalent dengue vaccine specifically targets the four serotypes of the dengue virus, known as DENV 1-4, and is administered in a two-dose schedule, with doses given three months apart. It is important to note that this code is used solely to report the vaccine product itself, while the administration of the vaccine should be reported separately.