What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 33001-9: R. typhi IgM Ql (S)

Name: LOINC Code 33001-9: R. typhi IgM Ql (S)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

33001-9 is a LOINC code used to identify R. typhi IgM Ql (S) 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 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 Rickettsia typhi 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

What it does not mean

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

Key facts

Rickettsia typhi IgM Ab [Presence] in Serum
Rickettsia typhi Ab.IgM
ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Endemic typhus; ID; Immune globulin M; Immunoglobulin M; Infectious Disease; InfectiousDisease; Microbiology; Murine typhus; Ordinal; Point in time; PR; QL; Qual; Qualitative; R typhi; Random; Ricket; Rickettsial; Screen; Serum; SR; 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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for R. typhi IgM Ql (S) (33001-9)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

R. typhi IgM Ql (S)Rickettsia typhi IgM Ab [Presence] in SerumR typhi IgM Ser QlRickettsia typhi Ab.IgMMICRORickettsia typhi IgM antibody, BloodPrThr

Frequently asked questions

Code details

Code33001-9

SystemLOINC

Display nameR. typhi IgM Ql (S)

DescriptionRickettsia typhi Ab.IgM

Short nameR typhi IgM Ser Ql

ComponentRickettsia typhi Ab.IgM

PropertyPrThr

TimingPt

System (specimen)Ser

ScaleOrd

ClassMICRO

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.09

Last changed2.73

Consumer names

Rickettsia typhi IgM antibody, Blood

Part names

Rickettsia typhi Ab.IgMPrThrPtSerOrdRickettsia typhi IgMPresence or ThresholdPoint 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.