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.

LOINCBoth

LOINC Code 24398-0: Toxoplasma sp IgM EIA Qn (S)

Name: LOINC Code 24398-0: Toxoplasma sp IgM EIA Qn (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:12.419Z

24398-0 is a LOINC code used to identify Toxoplasma sp IgM EIA Qn (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 Toxoplasma sp Ab.IgM. 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 Toxoplasma sp Ab.IgM. 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: DEPRECATED
Order vs observation: Both
Method: EIA

What it does not mean

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

Key facts

Deprecated Toxoplasma gondii IgM Ab [Units/volume] in Serum by Immunoassay
Toxoplasma sp Ab.IgM
ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; ELFA; ELISA; Enzyme immunoassay; IAA; ID; Immune globulin M; Immunoglobulin M; Infectious Disease; InfectiousDisease; MEIA; Microbiology; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; species; spp; SR; SUDS; Toxo; Toxoplasmosis

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

Toxoplasma sp IgM EIA Qn (S)Deprecated Toxoplasma gondii IgM Ab [Units/volume] in Serum by ImmunoassayDeprecated Toxoplasma IgM Ser EIA-aCncToxoplasma sp Ab.IgMMICROToxoplasma sp IgM antibody, BloodACnc

Frequently asked questions

Code details

Code24398-0

SystemLOINC

Display nameToxoplasma sp IgM EIA Qn (S)

DescriptionToxoplasma sp Ab.IgM

Short nameDeprecated Toxoplasma IgM Ser EIA-aCnc

ComponentToxoplasma sp Ab.IgM

PropertyACnc

TimingPt

System (specimen)Ser

ScaleQn

MethodEIA

ClassMICRO

Example unitsIU/mL

StatusDEPRECATED

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0o

Last changed2.70

Consumer names

Toxoplasma sp IgM antibody, Blood

Part names

Toxoplasma sp Ab.IgMACncPtSerQnEIAToxoplasma sp IgMArbitrary ConcentrationPoint in time (spot)SerumImmunoassay (EIA)

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.