CPT® Code 90661

1. Indications

The influenza virus vaccine, CPT® Code 90661, is indicated for the prevention of influenza caused by the strains included in the vaccine formulation. The vaccine is particularly recommended for individuals at higher risk of influenza-related complications, including but not limited to:

• High-Risk Populations Individuals such as the elderly, young children, pregnant women, and those with chronic health conditions (e.g., asthma, diabetes, heart disease) who are more susceptible to severe influenza illness.
• Healthcare Workers Professionals who are in close contact with patients and may transmit the virus to vulnerable populations.
• Community-Wide Vaccination General public vaccination efforts aimed at reducing the overall incidence of influenza in the community, particularly during flu season.

2. Procedure

The administration of the influenza virus vaccine, CPT® Code 90661, involves several key procedural steps to ensure proper delivery and effectiveness of the vaccine. These steps include:

• Step 1: Preparation Prior to administration, the healthcare provider must prepare the vaccine by ensuring it is stored correctly and is at the appropriate temperature. The vaccine should be visually inspected for any particulate matter or discoloration before use.
• Step 2: Patient Assessment The healthcare provider should assess the patient’s medical history, including any previous allergic reactions to vaccines, current medications, and overall health status to determine eligibility for vaccination.
• Step 3: Administration The vaccine is administered intramuscularly, typically in the deltoid muscle of the upper arm for adults and older children, or in the anterolateral thigh for infants and young children. The provider should use a sterile needle and syringe, and the injection site should be cleaned with an alcohol swab prior to administration.
• Step 4: Post-Administration Monitoring After the vaccine is administered, the patient should be monitored for a short period (usually 15 minutes) for any immediate adverse reactions, such as allergic responses. This is particularly important for individuals with a history of allergies.

3. Post-Procedure

Following the administration of the influenza virus vaccine, patients may experience mild side effects, which are generally self-limiting. Common post-procedure care includes advising the patient to rest and hydrate, as well as monitoring for any unusual symptoms. Patients should be informed about potential side effects, such as soreness at the injection site, low-grade fever, or fatigue, which typically resolve within a few days. It is also important to remind patients that the vaccine takes about two weeks to provide optimal protection against influenza, and they should continue to practice preventive measures, such as hand hygiene and avoiding close contact with sick individuals, during this period.