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 43424-1: Bartonella sp IgM (CSF) [Titer]

Name: LOINC Code 43424-1: Bartonella sp IgM (CSF) [Titer]
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

43424-1 is a LOINC code used to identify Bartonella sp IgM (CSF) [Titer] 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 Bartonella sp Ab.IgM. 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 Bartonella sp Ab.IgM. 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: Both

What it does not mean

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

Key facts

Bartonella sp IgM Ab [Titer] in Cerebral spinal fluid
Bartonella sp Ab.IgM
ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Cerebral spinal fluid; Cerebrospinal Fl; Dilution factor; Dilution Factor (Titer); ID; Immune globulin M; Immunoglobulin M; Infectious Disease; InfectiousDisease; Microbiology; Neuro; Neurology; Point in time; Random; Rochalimaea species; SmQn; species; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid; spp; Titer; Titered; Titre; Ttr

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 Bartonella sp IgM (CSF) [Titer] (43424-1)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Bartonella sp IgM (CSF) [Titer]Bartonella sp IgM Ab [Titer] in Cerebral spinal fluidBartonella IgM Titr CSFBartonella sp Ab.IgMMICROBartonella sp IgM antibody, Spinal fluidTitr

Frequently asked questions

Code details

Code43424-1

SystemLOINC

Display nameBartonella sp IgM (CSF) [Titer]

DescriptionBartonella sp Ab.IgM

Short nameBartonella IgM Titr CSF

ComponentBartonella sp Ab.IgM

PropertyTitr

TimingPt

System (specimen)CSF

ScaleSemiQn

ClassMICRO

Example unitstiter

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.17

Last changed2.75

Consumer names

Bartonella sp IgM antibody, Spinal fluid

Part names

Bartonella sp Ab.IgMTitrPtCSFSemiQnBartonella sp IgMTiterPoint 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.