Posted Date
Effective Date
Test Name Hantavirus Antibodies, IgG & IgM
Update Type New Tests
CPT Code 86790 x2
Order Code TBD

NEW TEST

 

Hantavirus Antibodies, IgG & IgM

Order Code:                  pending

Fee Code:                     AA491 (CPT 86790 x2)

Reference Laboratory:   Mayo HANGM

 

Mayo Clinic Laboratories will begin offering Hantavirus Antibodies, IgG & IgM, effective August 25, 2026. This test will replace Mayo test ID FHVGM (order code FHVGM) referred to Quest Diagnostics.

 

Collection Instructions: Collect specimen in an SST (preferred) or red top tube. Centrifuge, aliquot 0.6 mL (minimum 0.5 mL) of serum into a plastic vial, and refrigerate. 

 

Reference Range: IgM: Negative, IgG: Negative. 

 

  • False-negative results may occur in patients that are tested either too soon following infection or are significantly immunocompromised.
  • False-positive results may occur in patients with recent cytomegalovirus infection.
  • This assay detects IgM and IgG antibodies against antigens from the Sin Nombre and Andes Hantavirus strains; however, it will not differentiate between the two strains. It is unknown if this assay will detect antibodies to other Hantavirus strains. 
  • Results must be interpreted alongside epidemiological exposure history and clinical presentation, and diagnosis should not be made solely on serologic results from this assay. 
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