When is a vaccine administration code used in relation to a product code?

• A. Use a single combined code for vaccine and administration.
• B. Use the product code for the vaccine itself and a separate administration code for the service.
• C. Administration code replaces the product code.
• D. Do not code administration separately.

Answer: (B)

When coding vaccines, you report both the vaccine product and the administration service. The product code identifies the actual vaccine that was given, while a separate administration code describes the act of delivering that vaccine (how it was given, including route and any counseling or post‑vaccination instructions). This separation ensures accurate reimbursement for both the vaccine itself and the administration service. The administration code does not replace the product code, and you do not use a single combined code or omit the administration when a vaccine is given.