What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 22949-2: Brucella sp Ag Immune stain Ql (Placenta)

Name: LOINC Code 22949-2: Brucella sp Ag Immune stain Ql (Placenta)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

22949-2 is a LOINC code used to identify Brucella sp Ag Immune stain Ql (Placenta) 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 Brucella sp Ag. It is commonly used with the system or sample type Placenta.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Brucella sp Ag. It is commonly used with the system or sample type Placenta.

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: Immune stain

What it does not mean

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

Key facts

Brucella sp Ag [Presence] in Placenta by Immune stain
Brucella sp Ag
Antigen; Antigens; Bruc; Brucellosis; ID; IHC; Imm; Immunohistochemical stain; Immunostain; ImStn; Imun; Imune; Infectious Disease; InfectiousDisease; Microbiology; Ordinal; Placent; Placental; Point in time; PR; QL; Qual; Qualitative; Random; Screen; species; spp; St; Stains; Stn

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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Brucella sp Ag Immune stain Ql (Placenta) (22949-2)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Brucella sp Ag Immune stain Ql (Placenta)Brucella sp Ag [Presence] in Placenta by Immune stainBrucella Ag Placenta Ql ImStnBrucella sp AgMICROBrucella sp antigen, PlacentaPrThr

Frequently asked questions

Code details

Code22949-2

SystemLOINC

Display nameBrucella sp Ag Immune stain Ql (Placenta)

DescriptionBrucella sp Ag

Short nameBrucella Ag Placenta Ql ImStn

ComponentBrucella sp Ag

PropertyPrThr

TimingPt

System (specimen)Placenta

ScaleOrd

MethodImmune stain

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0n

Last changed2.63

Consumer names

Brucella sp antigen, Placenta

Part names

Brucella sp AgPrThrPtPlacentaOrdImmune stainPresence or ThresholdPoint in time (spot)

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.