Test Name: HEPATITIS A, IgM
Test Code: 2327812
Alias: Anti-HAV, IgM
HAV Antibody, IgM
HAV, IgM
LAB798
CPT Code(s): 86709  
Preferred Specimen: 2.0 mL serum
Container: SST (gold)
Minimum Volume: 1.0 mL serum
This volume does not allow for repeat testing.
Collection Instructions: Allow specimen to completely clot (this can take up to 60 minutes). Centrifuge for 15 minutes.
Transport Temperature: Refrigerated
Stability:

Room temperature: 3 days
Refrigerated: 7 days

Frozen: 30 days
Rejection Criteria: Gross hemolysis, Gross lipemia, Gross icterus
Schedule:

Monday - Friday; report available in 1-3 days
Method: Chemiluminescent immunoassay
Performing Lab:

Central DuPage Hospital
Clinical Significance: Useful for serologic diagnosis of acute or subacute hepatitis A. Initially, IgM antibody is usually detectable when clinical symptoms appear. It disappears 3 - 6 months afterwards.

NOTE: This test is also included in the Acute Hepatitis Panel.
Department: CDH Immunology
Use:

updated4/29/25
Reference Ranges:

No detectable IgM antibodies to HAV were found. A negative result generally indicates that the patient has not been infected. If clinical exposure to HAV is suspected despite a negative finding, a second sample should be collected one to two weeks later.

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The CPT codes included in this publication are in accordance with Current Procedural Terminology, a publication of the American Medical Association. CPT codes are provided here for the convenience of our clients; however, correct coding often varies from one carrier to another, and HealthLab may bill specific carriers using codes other than those shown. Clients who bill for services should verify the code(s) with the applicable payor to confirm that their use is appropriate in each case.
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