HealthAssure
HealthAssureGood Life
LOINCActiveBoth

LOINC Code 23954-1: B. henselae IgG IF (CSF) [Titer]

23954-1 is a LOINC code used to identify B. henselae IgG IF (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 henselae Ab.IgG. 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 henselae Ab.IgG. 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
  • Method: IF

What it does not mean

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

Key facts

  • Bartonella henselae IgG Ab [Titer] in Cerebral spinal fluid by Immunofluorescence
  • Bartonella henselae Ab.IgG
  • ABS; Aby; ACIF; Antby; Anti; Antibodies; Antibody; Anticomplement Immunofluorescence; Autoantibodies; Autoantibody; B henselae; Bacillary angiomaosis; Bacillary pelliosis; Cat Scratch Disease; Cat Scratch Fever; Cerebral spinal fluid; Cerebrospinal Fl; CSD; Dilution factor; Dilution Factor (Titer); FA; Fluorescent antibody; Fluoresent; ID; IFA; Immune fluorescence; Immune globulin G; Immunoflour; Immunofluor; Immunofluorescence; Immunoglobulin G; Infectious Disease; InfectiousDisease; Microbiology; Neuro; Neurology; Point in time; R henselae; Random; Rochalimaea henselae; SmQn; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid; Time Resolved Fluorescence; Titer; Titered; Titre; TRF; 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.

Common synonyms

B. henselae IgG IF (CSF) [Titer]Bartonella henselae IgG Ab [Titer] in Cerebral spinal fluid by ImmunofluorescenceB henselae IgG Titr CSF IFBartonella henselae Ab.IgGMICROBartonella henselae IgG antibody, Spinal fluidTitr

Frequently asked questions

Code details

Code23954-1
SystemLOINC
Display nameB. henselae IgG IF (CSF) [Titer]
DescriptionBartonella henselae Ab.IgG
Short nameB henselae IgG Titr CSF IF
ComponentBartonella henselae Ab.IgG
PropertyTitr
TimingPt
System (specimen)CSF
ScaleSemiQn
MethodIF
ClassMICRO
Example unitstiter
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0o
Last changed2.75

Consumer names

Bartonella henselae IgG antibody, Spinal fluid

Part names

Bartonella henselae Ab.IgGTitrPtCSFSemiQnIFBartonella henselae IgGTiterPoint in time (spot)Cerebral spinal fluidImmunofluorescence (IF)

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 23954-1 | HealthAssure