LOINCActiveObservation

LOINC Code 31405-4: Ganglioside GM1b IgM Qn (S)

31405-4 is a LOINC code used to identify Ganglioside GM1b IgM 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 Ganglioside GM1b 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 Ganglioside GM1b 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: ACTIVE
  • Order vs observation: Observation

What it does not mean

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

Key facts

  • Ganglioside GM1b IgM Ab [Units/volume] in Serum
  • Ganglioside GM1b Ab.IgM
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; GM1b Gangl; Immune globulin M; Immunoglobulin M; Monosialoganglioside; Point in time; QNT; Quan; Quant; Quantitative; Random; Serology; Serum; 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

Ganglioside GM1b IgM Qn (S)Ganglioside GM1b IgM Ab [Units/volume] in SerumGM1b Gangl IgM Ser-aCncGanglioside GM1b Ab.IgMSEROGanglioside GM1b IgM antibody, BloodACnc

Frequently asked questions

Code details

Code31405-4
SystemLOINC
Display nameGanglioside GM1b IgM Qn (S)
DescriptionGanglioside GM1b Ab.IgM
Short nameGM1b Gangl IgM Ser-aCnc
ComponentGanglioside GM1b Ab.IgM
PropertyACnc
TimingPt
System (specimen)Ser
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 GM1b IgM antibody, Blood

Part names

Ganglioside GM1b Ab.IgMACncPtSerQnGanglioside GM1b IgMArbitrary 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.

LOINC Code 31405-4 | HealthAssure