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 34053-9: Xylose 2 Hr post 5 g xylose PO [Moles/Vol]

Name: LOINC Code 34053-9: Xylose 2 Hr post 5 g xylose PO [Moles/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:21.187Z

34053-9 is a LOINC code used to identify Xylose 2 Hr post 5 g xylose PO [Moles/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 Xylose^2H post 5 g xylose PO. It is commonly used with the system or sample type Ser/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 Xylose^2H post 5 g xylose PO. It is commonly used with the system or sample type Ser/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

What it does not mean

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

Key facts

Xylose [Moles/volume] in Serum or Plasma --2 hours post 5 g xylose PO
Xylose^2H post 5 g xylose PO
120 min; 120 minutes; 120min; 2 hours; 2h p 5 g Xyl PO; After; CHEMISTRY.CHALLENGE TESTING; D-xylose; Level; p 5 g Xyl PO; Pl; Plasma; Plsm; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Substance concentration; Xylose absorption test

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

Xylose 2 Hr post 5 g xylose PO [Moles/Vol]Xylose [Moles/volume] in Serum or Plasma --2 hours post 5 g xylose POXylose 2h p 5 g Xyl PO SerPl-sCncXylose^2H post 5 g xylose POCHALXylose 2 hr after 5 g Xylose by mouth, BloodSCnc

Frequently asked questions

Code details

Code34053-9

SystemLOINC

Display nameXylose 2 Hr post 5 g xylose PO [Moles/Vol]

DescriptionXylose^2H post 5 g xylose PO

Short nameXylose 2h p 5 g Xyl PO SerPl-sCnc

ComponentXylose^2H post 5 g xylose PO

PropertySCnc

TimingPt

System (specimen)Ser/Plas

ScaleQn

ClassCHAL

Example unitsmmol/L;nmol/L

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.09

Last changed2.70

Consumer names

Xylose 2 hr after 5 g Xylose by mouth, Blood

Part names

Xylose^2H post 5 g xylose POSCncPtSer/PlasQnSubstance ConcentrationPoint in time (spot)Serum or 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.