LOINCActiveObservation

LOINC Code 44873-8: HIV 1+2 Ab IB Ql (S)

44873-8 is a LOINC code used to identify HIV 1+2 Ab IB Ql (S) 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 HIV 1+2 Ab. It is commonly used with the system or sample type Ser.

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 HIV 1+2 Ab. It is commonly used with the system or sample type Ser.

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: Observation
  • Method: IB

What it does not mean

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

Key facts

  • HIV 1+2 Ab [Presence] in Serum by Immunoblot
  • HIV 1+2 Ab
  • ABS; Aby; AIDS; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Blt; HIV 1 & 2; HIV 1 and 2 Ab; HIV type 1; HIV type I; HIV1; HIV1+2; Human immunodeficiency virus; i; ID; II; Immune blot; Immunobl; Immunoblot; Infectious Disease; InfectiousDisease; Microbiology; Ordinal; Point in time; PR; QL; Qual; Qualitative; Random; RIBA; Screen; Serum; SR; WB; WBLOT; West blot; West blt; Western blot

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

HIV 1+2 Ab IB Ql (S)HIV 1+2 Ab [Presence] in Serum by ImmunoblotHIV1+2 Ab Ser Ql IBHIV 1+2 AbMICROHIV 1+2 antibody, BloodPrThr

Frequently asked questions

Code details

Code44873-8
SystemLOINC
Display nameHIV 1+2 Ab IB Ql (S)
DescriptionHIV 1+2 Ab
Short nameHIV1+2 Ab Ser Ql IB
ComponentHIV 1+2 Ab
PropertyPrThr
TimingPt
System (specimen)Ser
ScaleOrd
MethodIB
ClassMICRO
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.17
Last changed2.73

Consumer names

HIV 1+2 antibody, Blood

Part names

HIV 1+2 AbPrThrPtSerOrdIBPresence or ThresholdPoint in time (spot)SerumImmunoblot

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 44873-8 | HealthAssure