CPT® Code 90655

1. Indications

The influenza virus vaccine, trivalent (IIV3), is indicated for the prevention of influenza disease caused by the circulating strains of the virus. The vaccine is particularly recommended for individuals at higher risk of complications from influenza, including:

• High-Risk Populations: Individuals with chronic health conditions, such as asthma, diabetes, or heart disease, who may experience severe illness if infected with the influenza virus.
• Older Adults: Individuals aged 65 years and older, who are more susceptible to severe complications from influenza.
• Pregnant Women: Pregnant individuals, as they are at increased risk for severe illness and can also pass antibodies to their infants.
• Healthcare Workers: Those who work in healthcare settings to protect themselves and their patients from influenza transmission.
• Children: Young children, especially those under the age of 5, who are at a higher risk for hospitalization due to influenza.

2. Procedure

The administration of the trivalent influenza virus vaccine involves several key procedural steps, which are outlined as follows:

• Step 1: Preparation of the Vaccine The vaccine is prepared by ensuring that it is at the appropriate temperature and is well-mixed. This may involve gently rolling the vial to ensure uniform distribution of the vaccine components.
• Step 2: Selection of Injection Site The healthcare provider selects an appropriate site for intramuscular injection, typically the deltoid muscle of the upper arm for adults and older children, or the anterolateral thigh for infants and young children.
• Step 3: Administration of the Vaccine The provider cleans the injection site with an alcohol swab to reduce the risk of infection. Using a sterile syringe and needle, the vaccine is injected intramuscularly into the selected site. The needle is inserted at a 90-degree angle to ensure proper delivery into the muscle.
• Step 4: Post-Injection Care After the injection, the provider may apply gentle pressure to the injection site with a cotton ball or gauze. The patient is monitored for a brief period to observe for any immediate adverse reactions.

3. Post-Procedure

Post-procedure care for the administration of the influenza vaccine includes monitoring the patient for any immediate side effects, which may include soreness at the injection site, low-grade fever, or mild fatigue. Patients are typically advised to remain in the healthcare setting for a short period after vaccination to ensure they do not experience any severe allergic reactions. It is also important to inform patients about potential side effects and the expected duration of these effects. Patients should be encouraged to report any unusual or severe reactions to their healthcare provider. Additionally, individuals should be advised to continue practicing preventive measures against influenza, such as hand hygiene and avoiding close contact with sick individuals, even after vaccination.