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.

LOINCBoth

LOINC Code 20993-2: C. trachomatis rRNA Probe Ql (Specimen)

Name: LOINC Code 20993-2: C. trachomatis rRNA Probe Ql (Specimen)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:29.457Z

20993-2 is a LOINC code used to identify C. trachomatis rRNA Probe Ql (Specimen) 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 Chlamydia trachomatis rRNA. It is commonly used with the system or sample type XXX.

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 Chlamydia trachomatis rRNA. It is commonly used with the system or sample type XXX.

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
Order vs observation: Both
Method: Probe

What it does not mean

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

Key facts

Deprecated Chlamydia trachomatis DNA [Presence] in Unspecified specimen by DNA probe
Chlamydia trachomatis rRNA
Arbitrary concentration; C trac; C trach; C tracho; C trachomatis; Chlam; Chlam trac; Chlamid; CT; DNA NUCLEIC ACID PROBE; DNA probe; ID; Infectious Disease; InfectiousDisease; LGV; Lymphogranuloma venereum; Microbiology; Misc; Miscellaneous; Ordinal; Other; Point in time; QL; Qual; Qualitative; Random; ribosomal RNA; Screen; Spec; To be specified in another part of the message; Trachoma; Unspecified

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

C. trachomatis rRNA Probe Ql (Specimen)Deprecated Chlamydia trachomatis DNA [Presence] in Unspecified specimen by DNA probeDeprecated C trach rRNA XXX Ql PrbChlamydia trachomatis rRNAMICROChlamydia trachomatis, SpecimenACnc

Frequently asked questions

Code details

Code20993-2

SystemLOINC

Display nameC. trachomatis rRNA Probe Ql (Specimen)

DescriptionChlamydia trachomatis rRNA

Short nameDeprecated C trach rRNA XXX Ql Prb

ComponentChlamydia trachomatis rRNA

PropertyACnc

TimingPt

System (specimen)XXX

ScaleOrd

MethodProbe

ClassMICRO

StatusDEPRECATED

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0m

Last changed2.69

Consumer names

Chlamydia trachomatis, Specimen

Part names

Chlamydia trachomatis rRNAACncPtXXXOrdProbeArbitrary ConcentrationPoint in time (spot)

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.