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 97558-1: Acetylcholine receptor binding IgG+IgM IA (S) [Moles/Vol]

Name: LOINC Code 97558-1: Acetylcholine receptor binding IgG+IgM IA (S) [Moles/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:29.659Z

97558-1 is a LOINC code used to identify Acetylcholine receptor binding 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 Acetylcholine receptor binding 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 Acetylcholine receptor binding 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

Acetylcholine receptor binding IgG+IgM Ab [Moles/volume] in Serum by Immunoassay
Acetylcholine receptor binding Ab.IgG+IgM
ABS; Aby; Acetylch; ACH; AChR; AChR Bind; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Bind; EIA; ELFA; ELISA; Enzyme immunoassay; IAA; Immune globulin G; Immune globulin M; Immunoglobulin G; Immunoglobulin M; Level; MEIA; Neuro; Neurology; Point in time; QNT; Quan; Quant; Quantitative; Random; Rec; Recept; Receptors; Recp; Recptr; 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

Acetylcholine receptor binding IgG+IgM IA (S) [Moles/Vol]Acetylcholine receptor binding IgG+IgM Ab [Moles/volume] in Serum by ImmunoassayAChR Bind IgG+IgM Ser IA-sCncAcetylcholine receptor binding Ab.IgG+IgMSEROAcetylcholine receptor binding IgG+IgM, BloodSCnc

Frequently asked questions

Code details

Code97558-1

SystemLOINC

Display nameAcetylcholine receptor binding IgG+IgM IA (S) [Moles/Vol]

DescriptionAcetylcholine receptor binding Ab.IgG+IgM

Short nameAChR Bind IgG+IgM Ser IA-sCnc

ComponentAcetylcholine receptor binding 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 released2.70

Last changed2.70

Consumer names

Acetylcholine receptor binding IgG+IgM, Blood

Part names

Acetylcholine receptor binding Ab.IgG+IgMSCncPtSerQnIASubstance 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.