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.

LOINCActiveObservation

LOINC Code 31676-0: Ganglioside GQ1b IgG Qn (CSF)

Name: LOINC Code 31676-0: Ganglioside GQ1b IgG Qn (CSF)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

31676-0 is a LOINC code used to identify Ganglioside GQ1b IgG Qn (CSF) 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 Ganglioside GQ1b Ab.IgG. It is commonly used with the system or sample type CSF.

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 Ganglioside GQ1b Ab.IgG. It is commonly used with the system or sample type CSF.

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

What it does not mean

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

Key facts

Ganglioside GQ1b IgG Ab [Units/volume] in Cerebral spinal fluid
Ganglioside GQ1b Ab.IgG
ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Cerebral spinal fluid; Cerebrospinal Fl; GQ1b; GQ1b Gangl; Immune globulin G; Immunoglobulin G; Point in time; QNT; Quan; Quant; Quantitative; Random; Serology; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid; Tetrasialylganglioside

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 Ganglioside GQ1b IgG Qn (CSF) (31676-0)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Ganglioside GQ1b IgG Qn (CSF)Ganglioside GQ1b IgG Ab [Units/volume] in Cerebral spinal fluidGQ1b Gangl IgG CSF-aCncGanglioside GQ1b Ab.IgGSEROGanglioside GQ1b IgG antibody, Spinal fluidACnc

Frequently asked questions

Code details

Code31676-0

SystemLOINC

Display nameGanglioside GQ1b IgG Qn (CSF)

DescriptionGanglioside GQ1b Ab.IgG

Short nameGQ1b Gangl IgG CSF-aCnc

ComponentGanglioside GQ1b Ab.IgG

PropertyACnc

TimingPt

System (specimen)CSF

ScaleQn

ClassSERO

Example unitsarb U/mL

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.07

Last changed2.68

Consumer names

Ganglioside GQ1b IgG antibody, Spinal fluid

Part names

Ganglioside GQ1b Ab.IgGACncPtCSFQnGanglioside GQ1b IgGArbitrary ConcentrationPoint in time (spot)Cerebral spinal fluid

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.