LOINCObservation

LOINC Code 2319-2: Gamma aminobutyrate (U) [Mass/Vol]

2319-2 is a LOINC code used to identify Gamma aminobutyrate (U) [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 Gamma aminobutyrate. It is commonly used with the system or sample type Urine.

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 Gamma aminobutyrate. It is commonly used with the system or sample type Urine.

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: DISCOURAGED
  • Order vs observation: Observation

What it does not mean

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

Key facts

  • Gamma aminobutyrate [Mass/volume] in Urine
  • Gamma aminobutyrate
  • 4-aminobutanoic acid; 4-aminobutyrate; 4-aminobutyric acid; Aminobutric; Aminobutyric; Amino-n-butyrate; Chemistry; GABA; Gamma aminobutyric acid; Gamma amino-butyric acid; Gamma amino-n-butyrate; Gamma amino-n-butyric acid; Level; Mass concentration; Piperidic acid; Point in time; QNT; Quan; Quant; Quantitative; Random; UA; UR; Urn

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

Gamma aminobutyrate (U) [Mass/Vol]Gamma aminobutyrate [Mass/volume] in UrineGABA Ur-mCncGamma aminobutyrateCHEMGamma aminobutyrate, UrineMCnc

Frequently asked questions

Code details

Code2319-2
SystemLOINC
Display nameGamma aminobutyrate (U) [Mass/Vol]
DescriptionGamma aminobutyrate
Short nameGABA Ur-mCnc
ComponentGamma aminobutyrate
PropertyMCnc
TimingPt
System (specimen)Urine
ScaleQn
ClassCHEM
StatusDISCOURAGED
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.44

Consumer names

Gamma aminobutyrate, Urine

Part names

Gamma aminobutyrateMCncPtUrineQnMass 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.

LOINC Code 2319-2 | HealthAssure