2025 CPT code 90688

Influenza virus vaccine, quadrivalent (IIV4), split virus, 0.5 mL dosage, for intramuscular use.

This code is for the vaccine product only. An administration code (e.g., 90471-90472) should be reported separately. Do not code individual components of combination vaccines separately.

Modifiers may apply in specific circumstances, including 33 (Preventive Services), 52 (Reduced Services), and 53 (Discontinued Procedure). Contact with payers for additional information.

Influenza vaccination is medically necessary for the prevention of influenza, particularly in high-risk populations such as the elderly, young children, and individuals with chronic health conditions.

The provider prepares the patient, reviews risks and benefits of the vaccine, administers the vaccine intramuscularly (typically in the deltoid muscle or anterolateral thigh), and provides post-vaccination instructions.

IMPORTANT For preservative-free versions, use 90686. For adjuvanted versions, use 90689 or 90694.For cell-culture derived, subunit, antibiotic-free vaccines use 90756.

In simple words: A flu shot that protects against four types of flu viruses, given as an injection into a muscle.

This code represents the administration of a 0.5 mL dose of a quadrivalent influenza virus vaccine, specifically a split virus formulation, delivered intramuscularly. This vaccine protects against four different strains of influenza.

Example 1: A healthy adult receives their annual flu shot during flu season., A child over 3 years old receives the quadrivalent influenza vaccine., A patient with a chronic illness receives their prescribed influenza vaccination.

Documentation should include the vaccine manufacturer, lot number, administration date, site of administration, and any adverse reactions. Patient consent and education should also be documented.

** Check with individual payers for specific coverage policies. For patients receiving both a SARS-CoV-2 vaccine and another vaccine, specific coding guidelines apply.

  • Revenue Code: O1G
  • Payment Status: Active
  • Fee Schedule : Fee schedules vary by year and payer. Refer to CMS or other payer fee schedules for historical data.
  • Specialties:Family Medicine, Internal Medicine, Pediatrics, Public Health, Occupational Health
  • Place of Service:Office, Inpatient Hospital, Outpatient Hospital, Pharmacy, Public Health Clinic
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