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 2323-4: Gamma glutamyl transferase (Sem) [Catalytic activity/Vol]

Name: LOINC Code 2323-4: Gamma glutamyl transferase (Sem) [Catalytic activity/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

2323-4 is a LOINC code used to identify Gamma glutamyl transferase (Sem) [Catalytic activity/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 glutamyl transferase. It is commonly used with the system or sample type Semen.

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 glutamyl transferase. It is commonly used with the system or sample type Semen.

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

Gamma glutamyl transferase [Enzymatic activity/volume] in Semen
Gamma glutamyl transferase
Catalytic Concentration; Chemistry; Ejaculate; Gamma glutamyl transpeptidase; Gamma-GTP; Genitourinary; GGT; GGTP; GT; GU; Point in time; QNT; Quan; Quant; Quantitative; Random; Sem; Seminal fluid; Smn; SMPLS; URO; Urology

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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Gamma glutamyl transferase (Sem) [Catalytic activity/Vol] (2323-4)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Gamma glutamyl transferase (Sem) [Catalytic activity/Vol]Gamma glutamyl transferase [Enzymatic activity/volume] in SemenGGT Smn-cCncGamma glutamyl transferaseCHEMGamma glutamyl transferase, SemenCCnc

Frequently asked questions

Code details

Code2323-4

SystemLOINC

Display nameGamma glutamyl transferase (Sem) [Catalytic activity/Vol]

DescriptionGamma glutamyl transferase

Short nameGGT Smn-cCnc

ComponentGamma glutamyl transferase

PropertyCCnc

TimingPt

System (specimen)Semen

ScaleQn

ClassCHEM

Example unitsarb U/L

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.73

Consumer names

Gamma glutamyl transferase, Semen

Part names

Gamma glutamyl transferaseCCncPtSemenQnCatalytic 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.