CPT® Code 90634

The CPT® Code 90634 refers to the Hepatitis A vaccine (HepA) specifically formulated for pediatric and adolescent patients, administered in a three-dose schedule via intramuscular injection. Vaccines, such as the HepA vaccine, are designed to provide active, long-term immunity by stimulating the recipient's immune system to recognize and combat specific pathogens. Unlike immune globulins, which offer temporary, passive immunity, vaccines encourage the body to produce its own antibodies, thereby equipping the immune system to respond effectively upon future exposure to the virus. The Hepatitis A vaccine is crucial in preventing hepatitis A, a serious liver infection that can lead to severe health complications, including hospitalization and, in extreme cases, death. The vaccine can be derived from the blood plasma of asymptomatic carriers or produced through recombinant technology, which involves inserting the hepatitis gene into yeast cells, purifying the resulting product, and ensuring its safety and efficacy. This code is specifically used to report the administration of the HepA vaccine for pediatric and adolescent patients, distinguishing it from other related codes that pertain to different dosages or combinations of vaccines.