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 94345-6: Glutamate decarboxylase 65 IgG+IgM IA (S) [Moles/Vol]

Name: LOINC Code 94345-6: Glutamate decarboxylase 65 IgG+IgM IA (S) [Moles/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:24.120Z

94345-6 is a LOINC code used to identify Glutamate decarboxylase 65 IgG+IgM IA (S) [Moles/Vol] 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 Glutamate decarboxylase 65 Ab.IgG+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 Glutamate decarboxylase 65 Ab.IgG+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: Both
Method: IA

What it does not mean

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

Key facts

Glutamate decarboxylase 65 IgG+IgM Ab [Moles/volume] in Serum by Immunoassay
Glutamate decarboxylase 65 Ab.IgG+IgM
ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Autoimmune myelopathy; c707; EIA; ELFA; ELISA; Endocrine; Endocrinology; Enzyme immunoassay; GAD; GAD65; GAD-65; GADA; Glu; Glutamic acid; Glutamic acid decarboxylase-65; IAA; Immune globulin G; Immune globulin M; Immunoglobulin G; Immunoglobulin M; Insulin-Dependent Diabetes Mellitus; Level; MEIA; Paraneoplastic neurological syndrome; Point in time; QNT; Quan; Quant; Quantitative; Random; Serology; Serum; SR; Substance concentration; SUDS

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

Glutamate decarboxylase 65 IgG+IgM IA (S) [Moles/Vol]Glutamate decarboxylase 65 IgG+IgM Ab [Moles/volume] in Serum by ImmunoassayGAD65 IgG+IgM Ser IA-sCncGlutamate decarboxylase 65 Ab.IgG+IgMSEROGlutamate decarboxylase 65 IgG+IgM, BloodSCnc

Frequently asked questions

Code details

Code94345-6

SystemLOINC

Display nameGlutamate decarboxylase 65 IgG+IgM IA (S) [Moles/Vol]

DescriptionGlutamate decarboxylase 65 Ab.IgG+IgM

Short nameGAD65 IgG+IgM Ser IA-sCnc

ComponentGlutamate decarboxylase 65 Ab.IgG+IgM

PropertySCnc

TimingPt

System (specimen)Ser

ScaleQn

MethodIA

ClassSERO

Example unitsnmol/L

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.68

Last changed2.68

Consumer names

Glutamate decarboxylase 65 IgG+IgM, Blood

Part names

Glutamate decarboxylase 65 Ab.IgG+IgMSCncPtSerQnIAGlutamate decarboxylase 65 IgG+IgMSubstance ConcentrationPoint in time (spot)SerumImmunoassay

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.