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 96491-6: Neuronal intermediate filament IgG IF (CSF) [Titer]

Name: LOINC Code 96491-6: Neuronal intermediate filament IgG IF (CSF) [Titer]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:27.591Z

96491-6 is a LOINC code used to identify Neuronal intermediate filament 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 Neuronal intermediate filament Ab.IgG. It is commonly used with the system or sample type CSF.

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 Neuronal intermediate filament 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

Neuronal intermediate filament IgG Ab [Titer] in Cerebral spinal fluid by Immunofluorescence
Neuronal intermediate filament Ab.IgG
ABS; Aby; ACIF; Antby; Anti; Antibodies; Antibody; Anticomplement Immunofluorescence; Autoantibodies; Autoantibody; Cerebral spinal fluid; Cerebrospinal Fl; Dilution factor; Dilution Factor (Titer); FA; Fluorescent antibody; Fluoresent; IFA; Immune fluorescence; Immune globulin G; Immunoflour; Immunofluor; Immunofluorescence; Immunoglobulin G; Neuro; Neurology; NIF; NIF Ab; NIF IgG; Point in time; Random; Serology; 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

Neuronal intermediate filament IgG IF (CSF) [Titer]Neuronal intermediate filament IgG Ab [Titer] in Cerebral spinal fluid by ImmunofluorescenceNIF IgG Titr CSF IFNeuronal intermediate filament Ab.IgGSERONeuronal intermediate filament IgG antibody, Spinal fluidTitr

Frequently asked questions

Code details

Code96491-6

SystemLOINC

Display nameNeuronal intermediate filament IgG IF (CSF) [Titer]

DescriptionNeuronal intermediate filament Ab.IgG

Short nameNIF IgG Titr CSF IF

ComponentNeuronal intermediate filament Ab.IgG

PropertyTitr

TimingPt

System (specimen)CSF

ScaleSemiQn

MethodIF

ClassSERO

Example unitstiter

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.69

Last changed2.75

Consumer names

Neuronal intermediate filament IgG antibody, Spinal fluid

Part names

Neuronal intermediate filament Ab.IgGTitrPtCSFSemiQnIFNeuronal intermediate filament 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.