Influenza Virus Vaccine and Administration

HCPCS/CPT Codes

  • 90653, 90656, 90657, 90658, 90660, 90661, 90662, 90673 – Influenza Virus Vaccine (effective 8/01/2025 - 07/31/2026)
  • G0008 - Administration of influenza virus vaccine
  • M0201 - Additional administration of influenza vaccine inside patient's home; reported only once per date of service

Frequency

Once per influenza season (additional flu shots are covered if medically necessary)

Diagnosis Code

Z23 - Encounter for immunization

Coverage

All Medicare beneficiaries

Payment

Copayment/coinsurance waived; Deductible waived

Roster Billing

  • Simplifies claims by allowing mass immunizers to submit one claim form with a list of several immunized beneficiaries on the same date
  • Use Medicare Beneficiary Identifiers (MBIs) to check eligibility and submit claims

Noridian Medicare Portal

No

Resources

Last Updated Sep 18 , 2025