LOINCActiveBoth

LOINC Code 29339-9: Flecainide (Gast fld) [Mass/Vol]

29339-9 is a LOINC code used to identify Flecainide (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 Flecainide. It is commonly used with the system or sample type Gast fld.

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 Flecainide. 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

  • Flecainide [Mass/volume] in Gastric fluid
  • Flecainide
  • DRUG/TOXICOLOGY; Drugs; GAST; Gastric contents; Gastric fluid; Level; Mass concentration; Point in time; QNT; Quan; Quant; Quantitative; Random; Tambocor

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

Flecainide (Gast fld) [Mass/Vol]Flecainide [Mass/volume] in Gastric fluidFlecainide Gast-mCncFlecainideDRUG/TOXFlecainide, Stomach fluidMCnc

Frequently asked questions

Code details

Code29339-9
SystemLOINC
Display nameFlecainide (Gast fld) [Mass/Vol]
DescriptionFlecainide
Short nameFlecainide Gast-mCnc
ComponentFlecainide
PropertyMCnc
TimingPt
System (specimen)Gast fld
ScaleQn
ClassDRUG/TOX
Example unitsug/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.03
Last changed2.70

Consumer names

Flecainide, Stomach fluid

Part names

FlecainideMCncPtGast 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.

LOINC Code 29339-9 | HealthAssure