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Hepatitis A (IgM), Acute Status

Test Code
512


Preferred Specimen
1 mL serum (0.5 mL minimum)


Transport Container
SST


Transport Temperature
Room temperature, stable 14 days


Methodology
Immunoassay

Reference Range
Nonreactive


Clinical Significance
IgM antibodies against Hepatitis A Virus (HAV) are detected soon after onset of symptoms. Persistence of the IgM response is extremely variable, with specific IgM detected for less than one month in some cases and greater than one year in others. In most cases, IgM antibodies against HAV persist for a period of three to six months after which they decline to levels that are below detection. Anti-HAV IgM detection can be useful for the differential diagnosis of hepatitis A from other forms of viral hepatitis.



Last Updated: September 3, 2010


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.