Q2037 - Influenza Vaccine

We're receiving denials from Indiana Medicaid when billing for Fluvirin - Q2037 (dx V04.81). Someone else in the office is telling me that the 'Q' codes are strictly for Medicare.

There's a policy straight from CMS with the fee schedule and billing info. The last I knew, CMS was the Centers for Medicare & MEDICAID Services.

Wouldn't CPT code Q2037 apply to Medicaid as well?

Q2037 - Influenza Vaccine