HEPATITIS A ANTIBODY, IGM

Test Code

LAB798

Alias/See Also

Anti-HAV IgM

CPT Codes
86709

Preferred Specimen

7 mL Red Top Tube

Minimum Volume

2.0 mL

Specimen Stability

Refrigerate sample

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Grossly hemolyzed or contaminated samples

Methodology
CMIA

Setup Schedule

Set Up:Monday-Friday Report Available:1 day

Reference Range

Non Reactive

Clinical Significance

Hepatitis A virus (HAV) is a self-limiting disease and is often a subclinical disorder, particularly in children. Symptomatic Hepatitis A infections can be clinically indistinguishable from infection with Hepatitis B, emphasizing the importance of serological testing to achieve proper diagnosis. During the acute phase of HAV infection IgM class antibody (anti-HAV IgM) appears in the patients serum and is nearly always detectable at the onset of symptoms. In most cases, anti-HAV IgM persists throughout the first three to six months of convalescence. Anti-HAV IgM declines in late convalescence, and is not detected in normal subjects regardless of the presence of IgG antibody to Hepatitis A virus (anti-HAV IgG) in their serum. Anti-HAV IgM is primarily used as an aid in the diagnosis of acute Hepatitis A.

Performing Laboratory
GBMC Immunology

The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.