LOINCOrder

LOINC Code 109918-3: R. typhi IgM (Body fld) [Measurement]

109918-3 is a LOINC code used to identify R. typhi IgM (Body fld) [Measurement] 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 21 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: TRIAL
  • Order vs observation: Order

What it does not mean

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

Key facts

Rickettsia typhi IgM Ab [Measurement] in Body fluid
Rickettsia typhi Ab.IgM
This term is intended to collate similar measurements for the LOINC SNOMED CT Collaboration in an ontological view. Additionally, it can be used to communicate a laboratory order, either alone or in combination with specimen or other information in the order. It may NOT be used to report back the measured patient value. [https//lo.inc/ce2mb6]
ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; Endemic typhus; Fl; Fld; FLU; Fluid; Immune globulin M; Immunoglobulin M; Lab orders; Msmt; Murine typhus; R typhi; Ricket; Rickettsial; 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 (Body fld) [Measurement]Rickettsia typhi IgM Ab [Measurement] in Body fluidR typhi IgM Msmt FldRickettsia typhi Ab.IgMLABORDERS.ONTOLOGYRickettsia typhi IgM antibody, Body fluid{Measurement}

Frequently asked questions

Code details

Code109918-3
SystemLOINC
Display nameR. typhi IgM (Body fld) [Measurement]
DescriptionRickettsia typhi Ab.IgM
Short nameR typhi IgM Msmt Fld
ComponentRickettsia typhi Ab.IgM
Property{Measurement}
Timing-
System (specimen)Body fld
Scale-
ClassLABORDERS.ONTOLOGY
StatusTRIAL
Order/ObservationOrder

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.81
Last changed2.81

Consumer names

Rickettsia typhi IgM antibody, Body fluid

Part names

Rickettsia typhi Ab.IgM{Measurement}-Body fldRickettsia typhi IgMMeasurementBody 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.

LOINC Code 109918-3 | HealthAssure