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2025 CPT code 90673

Influenza virus vaccine, trivalent (RIV3), derived from recombinant DNA, hemagglutinin (HA) protein only, preservative and antibiotic free, for intramuscular use.

Refer to the AMA CPT® website for the most up-to-date guidelines and any interim updates to the code descriptor.

Modifier 51 should not be used with this code when reported with administration codes. Other modifiers may apply based on circumstances (refer to CPT guidelines).

Medical necessity is established by the patient's age, risk factors for influenza, and the recommendation of the CDC and ACIP for annual influenza vaccination.

The provider's responsibilities include administering the intramuscular injection, counseling the patient on the benefits and risks of the vaccine, and explaining post-vaccination care instructions.

IMPORTANT Separate codes exist for combination vaccines.If a specific vaccine code isn't available, use an unlisted procedure code.

In simple words: This code describes a flu shot given as a muscle injection.The shot is a specific type of flu vaccine that doesn't contain preservatives or antibiotics.The doctor will talk to you about the benefits, risks, and what to do after you get the shot.

This CPT code, 90673, represents the administration of a trivalent influenza virus vaccine.The vaccine is derived from recombinant DNA (RIV3), utilizing only the hemagglutinin (HA) protein. Notably, it is preservative-free and antibiotic-free, intended for intramuscular injection.Prior to administration, a discussion of benefits, risks, and post-vaccination care is crucial.

Example 1: A 65-year-old patient receives the influenza vaccine as part of their annual wellness visit., A healthcare worker receives the vaccine as part of an employer-mandated vaccination program., A patient with a history of egg allergy is given this specific recombinant influenza vaccine due to its lack of egg proteins.

* Documentation should include the product administered (90673), the route of administration (intramuscular), and the date of administration.* Patient's medical history, including allergies, should be recorded.* Note the provider's discussion of benefits, risks, and post-vaccination care.

** Always refer to the most current CPT manual and payer guidelines for accurate coding and reimbursement.

** Only Enterprise users with EHR integration can access case-specific answers. Click here to request access.

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