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LOINC Code 49166-2: O. tsutsugamushi Kato IgG (Body fld) [Titer]

49166-2 is a LOINC code used to identify O. tsutsugamushi Kato IgG (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 Orientia tsutsugamushi Kato Ab.IgG. 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 Orientia tsutsugamushi Kato Ab.IgG. 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

What it does not mean

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

Key facts

  • Orientia tsutsugamushi Kato IgG Ab [Titer] in Body fluid
  • Orientia tsutsugamushi Kato Ab.IgG
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; Dilution factor; Dilution Factor (Titer); Fl; Fld; FLU; Fluid; ID; Immune globulin G; Immunoglobulin G; Infectious Disease; InfectiousDisease; Microbiology; O tsut; O tsut Kato; O tsutsugamushi; Oriental scrub typhus; Point in time; R orienta; R tsutsugamuchi; R tsutsugamushi; Random; Rickettsia orienta; Rickettsia tsutsugamuchi; Rickettsia tsutsugamushi; Rickettsia tsutsugamushi serotype kato; Scrub typhus; SmQn; Titer; Titered; Titre; 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

O. tsutsugamushi Kato IgG (Body fld) [Titer]Orientia tsutsugamushi Kato IgG Ab [Titer] in Body fluidO tsut Kato IgG Titr FldOrientia tsutsugamushi Kato Ab.IgGMICROOrientia tsutsugamushi Kato IgG antibody, Body fluidTitr

Frequently asked questions

Code details

Code49166-2
SystemLOINC
Display nameO. tsutsugamushi Kato IgG (Body fld) [Titer]
DescriptionOrientia tsutsugamushi Kato Ab.IgG
Short nameO tsut Kato IgG Titr Fld
ComponentOrientia tsutsugamushi Kato Ab.IgG
PropertyTitr
TimingPt
System (specimen)Body fld
ScaleSemiQn
ClassMICRO
Example unitstiter
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Orientia tsutsugamushi Kato IgG antibody, Body fluid

Part names

Orientia tsutsugamushi Kato Ab.IgGTitrPtBody fldSemiQnOrientia tsutsugamushi Kato IgGTiterPoint in time (spot)Body fluid

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.