CPT® Code 90744

The CPT® Code 90744 refers to the Hepatitis B vaccine (HepB) specifically formulated for pediatric and adolescent patients, administered in a three-dose schedule via intramuscular injection. Vaccines, unlike immune globulins that offer short-term, passive immunity, work by stimulating the recipient's immune system to develop active, long-lasting immunity. This is achieved by introducing altered forms of the hepatitis B virus, prompting the immune system to produce antibodies that will recognize and combat the virus upon future exposure. The hepatitis B vaccine is crucial in providing long-term protection against hepatitis B, a serious liver disease that can lead to severe health complications, including hospitalization and death. Additionally, it plays a significant role in preventing the long-term consequences associated with the disease, such as hepatocellular carcinoma, marking it as one of the pioneering cancer vaccines in medical use. The vaccine can be derived from the blood plasma of asymptomatic carriers or synthesized through recombinant technology, where a plasmid containing the hepatitis gene is inserted into baker's yeast, which is then purified to extract the necessary components. It is important to note that this code specifically reports the hepatitis B vaccine product for intramuscular use, while the actual injection procedure is reported separately. Other related codes include 90739 for adult dosages in a 2-dose or 4-dose schedule, 90740 for dialysis or immunosuppressed patients in a 3-dose schedule, 90743 for an adolescent 2-dose schedule, 90746 for an adult 3-dose schedule, and 90747 for dialysis or immunosuppressed patients in a 4-dose schedule.