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LOINC Code 48915-3: R. typhi IgM IF (Body fld) [Titer]

48915-3 is a LOINC code used to identify R. typhi IgM IF (Body fld) [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 Rickettsia typhi Ab.IgM. It is commonly used with the system or sample type Body fld.

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 Rickettsia typhi Ab.IgM. It is commonly used with the system or sample type Body fld.

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

  • Rickettsia typhi IgM Ab [Titer] in Body fluid by Immunofluorescence
  • Rickettsia typhi Ab.IgM
  • ABS; Aby; ACIF; Antby; Anti; Antibodies; Antibody; Anticomplement Immunofluorescence; Autoantibodies; Autoantibody; B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; Dilution factor; Dilution Factor (Titer); Endemic typhus; FA; Fl; Fld; FLU; Fluid; Fluorescent antibody; Fluoresent; ID; IFA; Immune fluorescence; Immune globulin M; Immunoflour; Immunofluor; Immunofluorescence; Immunoglobulin M; Infectious Disease; InfectiousDisease; Microbiology; Murine typhus; Point in time; R typhi; Random; Ricket; Rickettsial; SmQn; Time Resolved Fluorescence; Titer; Titered; Titre; TRF; Ttr; Typh; Typhus

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

R. typhi IgM IF (Body fld) [Titer]Rickettsia typhi IgM Ab [Titer] in Body fluid by ImmunofluorescenceR typhi IgM Titr Fld IFRickettsia typhi Ab.IgMMICRORickettsia typhi IgM antibody, Body fluidTitr

Frequently asked questions

Code details

Code48915-3
SystemLOINC
Display nameR. typhi IgM IF (Body fld) [Titer]
DescriptionRickettsia typhi Ab.IgM
Short nameR typhi IgM Titr Fld IF
ComponentRickettsia typhi Ab.IgM
PropertyTitr
TimingPt
System (specimen)Body fld
ScaleSemiQn
MethodIF
ClassMICRO
Example unitstiter
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.21
Last changed2.75

Consumer names

Rickettsia typhi IgM antibody, Body fluid

Part names

Rickettsia typhi Ab.IgMTitrPtBody fldSemiQnIFRickettsia typhi IgMTiterPoint in time (spot)Body 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 48915-3 | HealthAssure