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.

LOINCActiveObservation

LOINC Code 104645-7: Glucosylceramide LC/MS/MS (P) [Mass/Vol]

Name: LOINC Code 104645-7: Glucosylceramide LC/MS/MS (P) [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:19.128Z

104645-7 is a LOINC code used to identify Glucosylceramide LC/MS/MS (P) [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 Glucosylceramide. It is commonly used with the system or sample type 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 Glucosylceramide. It is commonly used with the system or sample type 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: Observation
Method: LC/MS/MS

What it does not mean

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

Key facts

Glucosylceramide [Mass/volume] in Plasma by LC/MS/MS

Glucosylceramide

This term is for the assay of Glucosylceramide (GL-1) biomarker level for Gaucher and Fabry patients.. A high sensitivity plasma GL-1 assay with LLOQ at 0.1 μg/mL was developed and validated using delipidized plasma so that patient plasma concentrations that are below normal reference range can be measured accurately. [PMID27547732}

C46H89NO8; Chemistry; GL-1; Level; Mass concentration; Pl; Plasma; Plsm; Point in time; 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

Glucosylceramide LC/MS/MS (P) [Mass/Vol]Glucosylceramide [Mass/volume] in Plasma by LC/MS/MSGL-1 Plas LC/MS/MS-mCncGlucosylceramideCHEMGlucosylceramide, BloodMCnc

Frequently asked questions

Code details

Code104645-7

SystemLOINC

Display nameGlucosylceramide LC/MS/MS (P) [Mass/Vol]

DescriptionGlucosylceramide

Short nameGL-1 Plas LC/MS/MS-mCnc

ComponentGlucosylceramide

PropertyMCnc

TimingPt

System (specimen)Plas

ScaleQn

MethodLC/MS/MS

ClassCHEM

Example unitsug/mL

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.78

Last changed2.78

Consumer names

Glucosylceramide, Blood

Part names

GlucosylceramideMCncPtPlasQnLC/MS/MSMass ConcentrationPoint in time (spot)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.