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Legionella pneumophila Antibody (IgM), IFA
- Ordering Info
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**IMPORTANT: CPT Code is informational only; obtain the Test Code for ordering.
Immunofluorescence Assay (IFA)
Legionella infection is associated with 2 clinically and epidemiologically distinct illnesses. Legionnaires disease and Pontiac fever. Legionnaires disease is characterized by fever, cough, myalgia, and pneumonia, whereas, Pontiac fever is a milder illness without pneumonia. Inhaling aerosols of water contaminated with Legionella species is believed to be the primary mode of Infection; the incubation period is generally 2-10 days. A 4-fold rise in IgG IFA Antibody titer to >1:128 between acute and convalescent sera may be used in the laboratory confirmation of Legionella infection.
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
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