LOINCActiveObservation

LOINC Code 25552-1: Uroporphyrin (24H Stl) [Moles/Time]

25552-1 is a LOINC code used to identify Uroporphyrin (24H Stl) [Moles/Time] 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 Uroporphyrin. It is commonly used with the system or sample type Stool.

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 Uroporphyrin. It is commonly used with the system or sample type Stool.

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

  • Uroporphyrin [Moles/time] in 24 hour Stool
  • Uroporphyrin
  • 1 day; 24 hours; 24HR; Bowel movement; Chemistry; Faecal; Faeces; Fecal; Feces; Hematology; Heme; Octacarboxyl porphyrin; Octacarboxylporphyrin; Octacarboxyphyrin; QNT; Quan; Quant; Quantitative; sRate; Stl; Stool = Fecal; Substance Rate; Urophorph

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

Uroporphyrin (24H Stl) [Moles/Time]Uroporphyrin [Moles/time] in 24 hour StoolUropor 24h Stl-sRateUroporphyrinCHEMUroporphyrin, StoolSRat

Frequently asked questions

Code details

Code25552-1
SystemLOINC
Display nameUroporphyrin (24H Stl) [Moles/Time]
DescriptionUroporphyrin
Short nameUropor 24h Stl-sRate
ComponentUroporphyrin
PropertySRat
Timing24H
System (specimen)Stool
ScaleQn
ClassCHEM
Example unitsnmol/24 H
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.42

Consumer names

Uroporphyrin, Stool

Part names

UroporphyrinSRat24HStoolQnSubstance Rate24 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.