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HelpTest Code AHBS Anti-Hepatitis B Surface Antibody (Anti-HBs)
Additional Codes
| Epic Ordering Code | LAB472 |
| NBS code | LBC13359 |
| Service code | 32134 |
Specimen Requirements
Submit only one of the following:
| Preferred: | Acceptable: |
| Yellow Top | Red Top |
Processing Requirements
Allow specimen to clot for 30 mins and centrifuge within 2 hours
Specimen type: Serum
Volume: 0.5mL
Specimen Stability
| Specimen type | Serum |
|---|---|
| Ambient | 24 hours |
| Refrigerate | 2 weeks (preferred) |
| Frozen | 1 year |
Specimen Condition
| Gross Haemolysis | Reject |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others | Not applicable |
Methodology
Chemiluminescent Immunoassay
Days and Times Performed
Monday through Friday, TAT 1 - 3 days
Reference Interval
Immunisation recommended: < 10 IU/L
Immune to Hepatitis B: ≥ 10 IU/L
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Presence of hepatitis B surface antibody suggests previous hepatitis B infection or immunisation
Update
Last updated 17/07/2026
LOINC Code Information
5193-8
Alias
AHBS
Antibody to Hepatitis B
HBsAb
Hepatitis B Surface Ab (Anti-HBs)
Surface Ag