CPT code 90662 describes a split-virus, preservative-free influenza vaccine with enhanced antigen content (high-dose) formulated for greater immunogenicity and administered as an intramuscular injection; the service is a vaccine administration procedure typically delivered in outpatient clinics, physician offices, pharmacies, and other ambulatory care settings.

For related coverage guidance, see recent payer policy updates: B-Hemolytic Streptococcus Testing, Human Immunodeficiency Virus (HIV) — Coverage Criteria for Testing and Resistance Assays, Hepatitis Testing (A, B, C, D) Coverage Criteria.