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.

LOINC

LOINC Code 22593-8: T. pallidum IgM Ql

Name: LOINC Code 22593-8: T. pallidum IgM Ql
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:30.110Z

22593-8 is a LOINC code used to identify T. pallidum IgM Ql 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 Treponema pallidum Ab.IgM. It is commonly used with the system or sample type Ser/Plas.

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 Treponema pallidum Ab.IgM. It is commonly used with the system or sample type Ser/Plas.

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: DEPRECATED

What it does not mean

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

Key facts

Deprecated Treponema pallidum IgM Ab [Presence] in Serum
Treponema pallidum Ab.IgM
ABS; Aby; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; ID; Immune globulin M; Immunoglobulin M; Infectious Disease; InfectiousDisease; Microbiology; Ordinal; Pl; Plasma; Plsm; Point in time; QL; Qual; Qualitative; Random; Screen; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Syphilis; T palldm; T pallidum; Treponemal

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

T. pallidum IgM QlDeprecated Treponema pallidum IgM Ab [Presence] in SerumDeprecated T pallidum IgM SerPl QlTreponema pallidum Ab.IgMMICROTreponema pallidum IgM antibody, BloodACnc

Frequently asked questions

Code details

Code22593-8

SystemLOINC

Display nameT. pallidum IgM Ql

DescriptionTreponema pallidum Ab.IgM

Short nameDeprecated T pallidum IgM SerPl Ql

ComponentTreponema pallidum Ab.IgM

PropertyACnc

TimingPt

System (specimen)Ser/Plas

ScaleOrd

ClassMICRO

StatusDEPRECATED

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0n

Last changed2.36

Consumer names

Treponema pallidum IgM antibody, Blood

Part names

Treponema pallidum Ab.IgMACncPtSer/PlasOrdTreponema pallidum IgMArbitrary ConcentrationPoint in time (spot)Serum or Plasma

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.