CPT® Code 86710

The CPT® Code 86710 refers to a laboratory test specifically designed to measure antibodies against the influenza virus, which includes both influenza A and B types. Influenza is primarily recognized as a mild upper respiratory illness; however, it can escalate into more severe conditions such as lower respiratory pneumonia. Influenza type A is particularly concerning for vulnerable populations, especially children under the age of 2 years, as it can lead to serious complications including croup, bronchitis, pneumonia, and can exacerbate asthmatic episodes and chronic pulmonary issues. In contrast, influenza type B is generally less severe and tends to cause more localized outbreaks. Notably, influenza type B does not respond to antiviral treatments, unlike type A, which has shown responsiveness to the antiviral medication amantadine. The measurement of antibodies is particularly valuable in clinical scenarios where the influenza virus cannot be isolated successfully from a patient sample. The presence of elevated IgA antibodies for both types of influenza indicates either a current or past infection, while elevated IgM antibodies are indicative of a current or recent infection. To perform this test, a blood sample is collected through a procedure known as venipuncture, which is reported separately. The serum obtained from the blood sample is then analyzed using a semi-quantitative enzyme-linked immunosorbent assay (ELISA) method, which allows for the detection and quantification of the influenza antibodies present in the serum.