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 18339-2: Desmethyltramadol metabolites Confirm Ql

Name: LOINC Code 18339-2: Desmethyltramadol metabolites Confirm Ql
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:27.587Z

18339-2 is a LOINC code used to identify Desmethyltramadol metabolites Confirm 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 Desmethyltramadol metabolites. 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 Desmethyltramadol metabolites. 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: ACTIVE
Order vs observation: Both
Method: Confirm

What it does not mean

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

Key facts

Desmethyltramadol metabolites [Presence] in Serum or Plasma by Confirmatory method
Desmethyltramadol metabolites
Cfm; CNFR; CNFRM; Conf; Confirmation; Confirmatory; DRUG/TOXICOLOGY; Drugs; GCMS; LC/MS/MS; Metabolite; Metb; Ordinal; Pl; Plasma; Plsm; Point in time; PR; QL; Qual; Qualitative; Random; Screen; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

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

Desmethyltramadol metabolites Confirm QlDesmethyltramadol metabolites [Presence] in Serum or Plasma by Confirmatory methodDesmethyltramadol met SerPl Ql CfmDesmethyltramadol metabolitesDRUG/TOXDesmethyltramadol metabolites, BloodPrThr

Frequently asked questions

Code details

Code18339-2

SystemLOINC

Display nameDesmethyltramadol metabolites Confirm Ql

DescriptionDesmethyltramadol metabolites

Short nameDesmethyltramadol met SerPl Ql Cfm

ComponentDesmethyltramadol metabolites

PropertyPrThr

TimingPt

System (specimen)Ser/Plas

ScaleOrd

MethodConfirm

ClassDRUG/TOX

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0l

Last changed2.82

Consumer names

Desmethyltramadol metabolites, Blood

Part names

Desmethyltramadol metabolitesPrThrPtSer/PlasOrdConfirmPresence or ThresholdPoint 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.