LOINCActiveBoth

LOINC Code 75408-5: HBV e Ag IA.rapid Ql (S/P/Bld)

75408-5 is a LOINC code used to identify HBV e Ag IA.rapid Ql (S/P/Bld) in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Hepatitis B virus little e Ag. It is commonly used with the system or sample type Ser/Plas/Bld.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component Hepatitis B virus little e Ag. It is commonly used with the system or sample type Ser/Plas/Bld.

When is it used?

  • Used in lab systems, EHRs, and clinical data exchange.
  • May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
  • Status: ACTIVE
  • Order vs observation: Both
  • Method: IA.rapid

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • Hepatitis B virus e Ag [Presence] in Serum, Plasma or Blood by Rapid immunoassay
  • Hepatitis B virus little e Ag
  • A rapid screening test to detect hepatitis B e antigen (HBeAg) in human blood to diagnose previous or ongoing hepatitis B infections, and also can be used to screen for the presence of HBeAg in blood products for transfusion. Rapid tests for Hepatitis B e (envelope) antigen (HBeAg) are available in test strip and cassette formats from manufacturers in various countries including the US and China. (As of 08/25/2014, no HBeAg rapid test kits are approved for use in the United States). This term was based on, but not limited in use to, the Medinostics International HBeAg Rapid Screen Test kit that uses a colloidal gold enhanced immunoassay for the determination of anti-HBe antigen (HBeAg) in human whole blood, serum or plasma. Testing can be done in 15-20 minutes.
  • Antigen; Antigens; Blood; e; EIA; ELFA; ELISA; Enzyme immunoassay; HB envelope; Hbe; HBEAG; HBV; HBV e; HBV e Ag; Hep; Hep B; Hep Be; Hepatis; Hepatit; Hepatology; HepB; IAA; ID; Infectious Disease; InfectiousDisease; Liver; MEIA; Microbiology; Ordinal; Pl; PlasBld; Plasma; Plsm; Point in time; PR; QL; Qual; Qualitative; Random; Rh Blood Group System; Screen; SerP; SerPl; SerPlas; SerPlBld; Serum; Serum or plasma; Serum, plasma or whole blood; SR; SUDS; WB; Whole blood

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

HBV e Ag IA.rapid Ql (S/P/Bld)Hepatitis B virus e Ag [Presence] in Serum, Plasma or Blood by Rapid immunoassayHBV e Ag SerPlBld Ql IA.rapidHepatitis B virus little e AgMICROHepatitis B virus (HBV) e antigen, BloodPrThr

Frequently asked questions

Code details

Code75408-5
SystemLOINC
Display nameHBV e Ag IA.rapid Ql (S/P/Bld)
DescriptionHepatitis B virus little e Ag
Short nameHBV e Ag SerPlBld Ql IA.rapid
ComponentHepatitis B virus little e Ag
PropertyPrThr
TimingPt
System (specimen)Ser/Plas/Bld
ScaleOrd
MethodIA.rapid
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.50
Last changed2.56

Consumer names

Hepatitis B virus (HBV) e antigen, Blood

Part names

Hepatitis B virus little e AgPrThrPtSer/Plas/BldOrdIA.rapidHepatitis B virus e AgPresence or ThresholdPoint in time (spot)Serum, Plasma or BloodRapid immunoassay

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

LOINC Code 75408-5 | HealthAssure