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LOINC Code 23994-7: EBV nuclear IgG IF (CSF) [Titer]

23994-7 is a LOINC code used to identify EBV nuclear 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 Epstein Barr virus nuclear 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 Epstein Barr virus nuclear 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

  • Epstein Barr virus nuclear IgG Ab [Titer] in Cerebral spinal fluid by Immunofluorescence
  • Epstein Barr virus nuclear Ab.IgG
  • ABS; Aby; ACIF; ANA; ANA IgG; ANF; Antby; Anti; Antibodies; Antibody; Anticomplement Immunofluorescence; Antinuclear antibody; Autoantibodies; Autoantibody; Cerebral spinal fluid; Cerebrospinal Fl; Dilution factor; Dilution Factor (Titer); EBNA; EBV; EBV NA; Epstn; FA; FANA; Fluorescent antibody; Fluoresent; HHV-4; human herpesvirus 4; ID; IFA; Immune fluorescence; Immune globulin G; Immunoflour; Immunofluor; Immunofluorescence; Immunoglobulin G; Infectious Disease; InfectiousDisease; Microbiology; Mono; Mononucleosis; NA; Neuro; Neurology; Nuc; Point in time; Random; 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

EBV nuclear IgG IF (CSF) [Titer]Epstein Barr virus nuclear IgG Ab [Titer] in Cerebral spinal fluid by ImmunofluorescenceEBV NA IgG Titr CSF IFEpstein Barr virus nuclear Ab.IgGMICROEpstein Barr virus (EBV) Nuclear IgG antibody, Spinal fluidTitr

Frequently asked questions

Code details

Code23994-7
SystemLOINC
Display nameEBV nuclear IgG IF (CSF) [Titer]
DescriptionEpstein Barr virus nuclear Ab.IgG
Short nameEBV NA IgG Titr CSF IF
ComponentEpstein Barr virus nuclear 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

Epstein Barr virus (EBV) Nuclear IgG antibody, Spinal fluid

Part names

Epstein Barr virus nuclear Ab.IgGTitrPtCSFSemiQnIFEpstein Barr virus nuclear 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 23994-7 | HealthAssure