California Subscriber
Answer: The appropriate CPT codes are 90733 (meningococcal polysaccharide vaccine [any group(s)], for subcutaneous or jet injection use) and 90471 (immunization administration [includes percutaneous, intradermal, subcutaneous, intramuscular and jet injections and/or intranasal or oral administration]; one vaccine [single or combination vaccine/toxoid]).
Many coders recommend V03.89 (need for prophylactic vaccination and inoculation against bacterial diseases; other specified vaccination) as the diagnosis code because your practice is providing the vaccination as a prevention measure among a population that lives in close proximity to one another and therefore runs the risk of increased exposure.
A second possible diagnosis code is V02.59 (carrier or suspected carrier of infectious diseases; other specified bacterial disease) if your physician has reason to believe the patient is a carrier of the disease.