LOINCActiveBoth

LOINC Code 49165-4: O. tsutsugamushi Kato IgG (S) [Titer]

49165-4 is a LOINC code used to identify O. tsutsugamushi Kato IgG (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 Orientia tsutsugamushi Kato Ab.IgG. 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 Orientia tsutsugamushi Kato Ab.IgG. 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

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 Serum
  • Orientia tsutsugamushi Kato Ab.IgG
  • ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Dilution factor; Dilution Factor (Titer); 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; Serum; SmQn; SR; 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 (S) [Titer]Orientia tsutsugamushi Kato IgG Ab [Titer] in SerumO tsut Kato IgG Titr SerOrientia tsutsugamushi Kato Ab.IgGMICROOrientia tsutsugamushi Kato IgG antibody, BloodTitr

Frequently asked questions

Code details

Code49165-4
SystemLOINC
Display nameO. tsutsugamushi Kato IgG (S) [Titer]
DescriptionOrientia tsutsugamushi Kato Ab.IgG
Short nameO tsut Kato IgG Titr Ser
ComponentOrientia tsutsugamushi Kato Ab.IgG
PropertyTitr
TimingPt
System (specimen)Ser
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, Blood

Part names

Orientia tsutsugamushi Kato Ab.IgGTitrPtSerSemiQnOrientia tsutsugamushi Kato IgGTiterPoint in time (spot)Serum

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.