LOINCActiveBoth

LOINC Code 10907-4: SLEV IgM IF (S) [Titer]

10907-4 is a LOINC code used to identify SLEV IgM IF (S) [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 Saint Louis encephalitis virus Ab.IgM. It is commonly used with the system or sample type Ser.

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 Saint Louis encephalitis virus 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: IF

What it does not mean

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

Key facts

  • Saint Louis encephalitis virus IgM Ab [Titer] in Serum by Immunofluorescence
  • Saint Louis encephalitis virus Ab.IgM
  • ABS; Aby; ACIF; Antby; Anti; Antibodies; Antibody; Anticomplement Immunofluorescence; Autoantibodies; Autoantibody; Dilution factor; Dilution Factor (Titer); Enc; Enceph; Encephalomyelitis; FA; Fluorescent antibody; Fluoresent; ID; IFA; Immune fluorescence; Immune globulin M; Immunoflour; Immunofluor; Immunofluorescence; Immunoglobulin M; Infectious Disease; InfectiousDisease; Microbiology; Point in time; Random; Serum; SLE virus; SLEV; SmQn; SR; St Louis; 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

SLEV IgM IF (S) [Titer]Saint Louis encephalitis virus IgM Ab [Titer] in Serum by ImmunofluorescenceSLEV IgM Titr Ser IFSaint Louis encephalitis virus Ab.IgMMICROSLEV IgM antibody, BloodTitr

Frequently asked questions

Code details

Code10907-4
SystemLOINC
Display nameSLEV IgM IF (S) [Titer]
DescriptionSaint Louis encephalitis virus Ab.IgM
Short nameSLEV IgM Titr Ser IF
ComponentSaint Louis encephalitis virus Ab.IgM
PropertyTitr
TimingPt
System (specimen)Ser
ScaleSemiQn
MethodIF
ClassMICRO
Example unitstiter
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0j-a
Last changed2.75

Consumer names

SLEV IgM antibody, Blood

Part names

Saint Louis encephalitis virus Ab.IgMTitrPtSerSemiQnIFSaint Louis encephalitis virus IgMTiterPoint in time (spot)SerumImmunofluorescence (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 10907-4 | HealthAssure