CPT Code: 87340 Order Code: 498 Includes: Hepatitis B Surface Antigen with Reflex to Confirmation Positive samples will be confirmed based on the manufacturer’s FDA approved recommendations at an additional charge (CPT code(s): 87341). Alternative Name(s): HBsAg ABN Requirement: No Specimen: Preferred: Serum Alternative: EDTA Plasma Volume: 2.0 mL Minimum Volume: 1.0 mL Container: Preferred: Gel-barrier tube (SST) more »