HCPCS G2164 is officially defined as "Patient had a prior influenza virus vaccine adverse reaction any time before or during the measurement period." HCPCS G2164 is referenced in 2 tracked payer policy changes from Medical Mutual of Ohio and Sentara Health Plans. For billers and coders, staying current on payer-specific coverage criteria, reimbursement rules, and prior-authorization requirements for HCPCS G2164 is critical to clean claim submission. Each entry below links to the full policy analysis with effective dates and action steps.
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