Hepatitis B Surface Antigen with Reflex Confirmation : 498

Test Code

HBSAGR or 498

Alias/See Also

Australian Antigen, HBsAg, Hep B

CPT Codes
87340

Includes

Positive samples will be confirmed based on the manufacturer's FDA approved recommendations at an additional charge (CPT code(s): 87341) (non-orderable Bill only code HBSAGC %36204).

Instructions

Note: When only a single test, Hepatitis B Surface Antigen, is ordered to diagnose Hepatitis B in a pregnant woman, additional tests such as liver enzymes should be ordered to confirm the diagnosis.

Transport Container

Preferred Specimen
2 mL serum

Alternative Specimen
Plasma collected in: EDTA (lavender-top) tube

Minimum Volume
1 mL

Transport Temperature

Room temperature.

Specimen Stability

Room temperature: 7 days; Refrigerated: 14 days; Frozen: 30 days

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

Gross hemolysis, Grossly lipemic

Methodology
Immunoassay

Setup Schedule

Sunday - Saturday

Report Available

1 day

Reference Range

Non-Reactive

Clinical Significance

Surface antigen usually appears in the serum after an incubation period of 1 to 6 months following exposure to Hepatitis B virus and peaks shortly after onset of symptoms. It typically disappears within 1 to 3 months. Persistence of Hepatitis B Surface Antigen for greater than 6 months is a prognostic indicator of chronic Hepatitis B infection.

Performing Laboratory
med fusion

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.