LOINCActiveObservation

LOINC Code 10456-2: Xylose post 6 Hr fast [Mass/Vol]

10456-2 is a LOINC code used to identify Xylose post 6 Hr fast [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 Xylose^post 6H CFst. 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^post 6H CFst. 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 [Mass/volume] in Serum or Plasma --6 hours fasting
  • Xylose^post 6H CFst
  • After; Calorie Fast; CHEMISTRY.CHALLENGE TESTING; D-xylose; Fast; Fasting; Level; Mass concentration; p 6h fast; PC; Pl; Plasma; Plsm; Point in time; PST; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; 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 post 6 Hr fast [Mass/Vol]Xylose [Mass/volume] in Serum or Plasma --6 hours fastingXylose p 6h fast SerPl-mCncXylose^post 6H CFstCHALXylose after 6 hr Fast, BloodMCnc

Frequently asked questions

Code details

Code10456-2
SystemLOINC
Display nameXylose post 6 Hr fast [Mass/Vol]
DescriptionXylose^post 6H CFst
Short nameXylose p 6h fast SerPl-mCnc
ComponentXylose^post 6H CFst
PropertyMCnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHAL
Example unitsmg/dL;ug/dL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0i
Last changed2.40

Consumer names

Xylose after 6 hr Fast, Blood

Part names

Xylose^post 6H CFstMCncPtSer/PlasQnMass 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.

LOINC Code 10456-2 | HealthAssure