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 5177-1: H. pylori IgM IA Qn (S)

Name: LOINC Code 5177-1: H. pylori IgM IA Qn (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:35.013Z

5177-1 is a LOINC code used to identify H. pylori IgM IA 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 Helicobacter pylori 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 Helicobacter pylori 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: Both
Method: IA

What it does not mean

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

Key facts

Helicobacter pylori IgM Ab [Units/volume] in Serum by Immunoassay
Helicobacter pylori Ab.IgM
ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; C pylori; Campylobacter pylori; EIA; ELFA; ELISA; Enzyme immunoassay; Gastro; Gastroenterology; GI; H pyl; H pylori; IAA; Immune globulin M; Immunoglobulin M; MEIA; Microbiology; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; SR; SUDS; UniversalLabOrders

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

H. pylori IgM IA Qn (S)Helicobacter pylori IgM Ab [Units/volume] in Serum by ImmunoassayH pylori IgM Ser IA-aCncHelicobacter pylori Ab.IgMMICROHelicobacter pylori IgM antibody, BloodACnc

Frequently asked questions

Code details

Code5177-1

SystemLOINC

Display nameH. pylori IgM IA Qn (S)

DescriptionHelicobacter pylori Ab.IgM

Short nameH pylori IgM Ser IA-aCnc

ComponentHelicobacter pylori Ab.IgM

PropertyACnc

TimingPt

System (specimen)Ser

ScaleQn

MethodIA

ClassMICRO

Example unitsIndex Value

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.73

Consumer names

Helicobacter pylori IgM antibody, Blood

Part names

Helicobacter pylori Ab.IgMACncPtSerQnIAHelicobacter pylori IgMArbitrary 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.