LOINCActiveObservation

LOINC Code 22630-8: Xylose/Xylose dose post 25 g xylose PO (5 hour U) [Molar fraction]

22630-8 is a LOINC code used to identify Xylose/Xylose dose post 25 g xylose PO (5 hour U) [Molar fraction] 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/Xylose.dose^post 25 g xylose PO. It is commonly used with the system or sample type Urine.

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/Xylose.dose^post 25 g xylose PO. 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: ACTIVE
  • Order vs observation: Observation

What it does not mean

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

Key facts

  • Xylose/Xylose dose in 5 hour Urine --post 25 g xylose PO
  • Xylose/Xylose.dose^post 25 g xylose PO
  • 5 hours; 5.0Hr; 5HR; After; CHEMISTRY.CHALLENGE TESTING; D-xylose; p 25 g Xyl PO; Percent; PST; QNT; Quan; Quant; Quantitative; Substance Fraction; UA; UR; Urn; 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/Xylose dose post 25 g xylose PO (5 hour U) [Molar fraction]Xylose/Xylose dose in 5 hour Urine --post 25 g xylose POXylose p 25 g Xyl PO 5h SFr UrXylose/Xylose.dose^post 25 g xylose POCHALXylose/Xylose Dose after 25 g Xylose by mouth, UrineSFr

Frequently asked questions

Code details

Code22630-8
SystemLOINC
Display nameXylose/Xylose dose post 25 g xylose PO (5 hour U) [Molar fraction]
DescriptionXylose/Xylose.dose^post 25 g xylose PO
Short nameXylose p 25 g Xyl PO 5h SFr Ur
ComponentXylose/Xylose.dose^post 25 g xylose PO
PropertySFr
Timing5H
System (specimen)Urine
ScaleQn
ClassCHAL
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0n
Last changed2.73

Consumer names

Xylose/Xylose Dose after 25 g Xylose by mouth, Urine

Part names

Xylose/Xylose.dose^post 25 g xylose POSFr5HUrineQnSubstance Fraction5 hours

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.