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.

LOINC

LOINC Code 25594-3: Schistosoma sp IgG Qn (S)

Name: LOINC Code 25594-3: Schistosoma sp IgG Qn (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:13.649Z

25594-3 is a LOINC code used to identify Schistosoma sp IgG 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 Schistosoma sp Ab.IgG. 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 Schistosoma sp Ab.IgG. 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

What it does not mean

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

Key facts

Deprecated Schistosoma sp IgG Ab [Units/volume] in Serum
Schistosoma sp Ab.IgG
ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Bilharziasis; blood fluke; Cercarial dermatitis; ID; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; Microbiology; Point in time; QNT; Quan; Quant; Quantitative; Random; Schistosomiasis; Serum; species; spp; SR

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

Schistosoma sp IgG Qn (S)Deprecated Schistosoma sp IgG Ab [Units/volume] in SerumDeprecated Schistosoma IgG Ser-aCncSchistosoma sp Ab.IgGMICROSchistosoma sp IgG antibody, BloodACnc

Frequently asked questions

Code details

Code25594-3

SystemLOINC

Display nameSchistosoma sp IgG Qn (S)

DescriptionSchistosoma sp Ab.IgG

Short nameDeprecated Schistosoma IgG Ser-aCnc

ComponentSchistosoma sp Ab.IgG

PropertyACnc

TimingPt

System (specimen)Ser

ScaleQn

ClassMICRO

StatusDEPRECATED

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.00

Last changed2.69

Consumer names

Schistosoma sp IgG antibody, Blood

Part names

Schistosoma sp Ab.IgGACncPtSerQnSchistosoma sp IgGArbitrary ConcentrationPoint in time (spot)Serum

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.