Medicare Administration Code

A Medicare patient was given hepatitis A & B vaccine shot which would be coded as 90636 but what would be the Administration code for this. I see the Admin code - G0010 for hepatitis B but no listing for "A", does this cover both? Any explanation on this?

re: Medicare Administration Code

90636 covers both A and B vaccines

90471--Immunization administration (includes percutaneous, intradermal, subcutaneous, intramuscular and jet injections) one vaccine (single or combination vaccine/toxoid)

90472--Each additional vaccine (single or combination vaccine) List separately in addition to the code for primary procedure