LOINCActiveBoth

LOINC Code 30109-3: Ecgonine methyl ester (Gast fld) [Mass/Vol]

30109-3 is a LOINC code used to identify Ecgonine methyl ester (Gast fld) [Mass/Vol] 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 Ecgonine methyl ester. It is commonly used with the system or sample type Gast 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 Ecgonine methyl ester. It is commonly used with the system or sample type Gast 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: ACTIVE
  • Order vs observation: Both

What it does not mean

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

Key facts

  • Ecgonine methyl ester [Mass/volume] in Gastric fluid
  • Ecgonine methyl ester
  • Addiction; Cocaine metabolite; DRUG/TOXICOLOGY; Drugs; Drugs of abuse; EME; Esters; GAST; Gastric contents; Gastric fluid; Illicit; Level; Mass concentration; Methylecgonine; Point in time; PotentialForAbuse; QNT; Quan; Quant; Quantitative; Random

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

Ecgonine methyl ester (Gast fld) [Mass/Vol]Ecgonine methyl ester [Mass/volume] in Gastric fluidEME Gast-mCncEcgonine methyl esterDRUG/TOXEcgonine methyl ester, Stomach fluidMCnc

Frequently asked questions

Code details

Code30109-3
SystemLOINC
Display nameEcgonine methyl ester (Gast fld) [Mass/Vol]
DescriptionEcgonine methyl ester
Short nameEME Gast-mCnc
ComponentEcgonine methyl ester
PropertyMCnc
TimingPt
System (specimen)Gast fld
ScaleQn
ClassDRUG/TOX
Example unitsng/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.04
Last changed2.34

Consumer names

Ecgonine methyl ester, Stomach fluid

Part names

Ecgonine methyl esterMCncPtGast fldQnMass ConcentrationPoint in time (spot)Gastric 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.