MedicaidBilling CodesHigh impact
Billing of Influenza Vaccines for the 2020-2021 Influenza Season pdf
Connecticut Medicaid (HUSKY Health)·CT · Family Medicine, Internal Medicine, General Practice +1 more·Provider Bulletin
We identified it
Jun 20, 2026
Summary
Connecticut Medicaid requires exact matching between the 11-digit NDC and HCPCS code when billing influenza vaccines for the 2020-2021 season. Claims will be denied if the NDC doesn't correspond to the correct vaccine code, and providers must use outer carton NDCs.
Action Required
Immediately: Billing team must verify all influenza vaccine claims use the correct HCPCS code that matches the 11-digit outer carton NDC before submission. Update billing system edits to cross-reference NDC to HCPCS codes using the provided manufacturer resources. Train staff that mismatched NDC/HCPCS combinations will result in automatic claim denials for Connecticut Medicaid patients.