LOINCActiveBoth

LOINC Code 47364-5: HBV surface Ag IA Ql (S donor)

47364-5 is a LOINC code used to identify HBV surface Ag IA Ql (S donor) 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 surface Ag. It is commonly used with the system or sample type Ser^Donor.

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 surface Ag. It is commonly used with the system or sample type Ser^Donor.

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

What it does not mean

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

Key facts

  • Hepatitis B virus surface Ag [Presence] in Serum from Donor by Immunoassay
  • Hepatitis B virus surface Ag
  • This test is intended to be used as a primary screening test for the diagnosis of acute or chronic hepatitis due to Hepatitis B virus (HBV) infection. This test has been approved by the FDA for the screening of donors of human cells, tissues and tissue-based products. A Positive HBVsAg test result is indicative of an acute or chronic infection with HBV, and may be used to disqualify a potential cell or tissue donor. This test is not intended to be used for routine clinical diagnostic testing.
  • Antigen; Antigens; Australia antigen; Donr; EIA; ELFA; ELISA; Enzyme immunoassay; HBs; HBsAG; HBV; HBV surface; Hep; Hep B; Hep Bs; Hepatis; Hepatit; Hepatology; HepB; IAA; ID; Infectious Disease; InfectiousDisease; Liver; MEIA; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Serum; SR; SUDS; Surf; UniversalLabOrders

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 surface Ag IA Ql (S donor)Hepatitis B virus surface Ag [Presence] in Serum from Donor by ImmunoassayHBV surface Ag Ser Donr Ql IAHepatitis B virus surface AgMICROHepatitis B virus (HBV) Surface antigen, Donor BloodPrThr

Frequently asked questions

Code details

Code47364-5
SystemLOINC
Display nameHBV surface Ag IA Ql (S donor)
DescriptionHepatitis B virus surface Ag
Short nameHBV surface Ag Ser Donr Ql IA
ComponentHepatitis B virus surface Ag
PropertyPrThr
TimingPt
System (specimen)Ser^Donor
ScaleOrd
MethodIA
ClassMICRO
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.19
Last changed2.73

Consumer names

Hepatitis B virus (HBV) Surface antigen, Donor Blood

Part names

Hepatitis B virus surface AgPrThrPtSer^DonorOrdIAPresence or ThresholdPoint in time (spot)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 47364-5 | HealthAssure