LOINCActiveBoth

LOINC Code 12501-3: PHENobarbital Ql (Stl)

12501-3 is a LOINC code used to identify PHENobarbital Ql (Stl) 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 PHENobarbital. It is commonly used with the system or sample type Stool.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 PHENobarbital. 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: Both

What it does not mean

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

Key facts

  • PHENobarbital [Presence] in Stool
  • PHENobarbital
  • Barbiturate; Bowel movement; c417; DRUG/TOXICOLOGY; Drugs; Faecal; Faeces; Fecal; Feces; Luminal; Nirvonal; Ordinal; PHBR; Phenobarb; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Stl; Stool = Fecal

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

PHENobarbital Ql (Stl)PHENobarbital [Presence] in StoolPhenobarb Stl QlPHENobarbitalDRUG/TOXPHENobarbital, StoolPrThr

Frequently asked questions

Code details

Code12501-3
SystemLOINC
Display namePHENobarbital Ql (Stl)
DescriptionPHENobarbital
Short namePhenobarb Stl Ql
ComponentPHENobarbital
PropertyPrThr
TimingPt
System (specimen)Stool
ScaleOrd
ClassDRUG/TOX
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0j-a
Last changed2.56

Consumer names

PHENobarbital, Stool

Part names

PHENobarbitalPrThrPtStoolOrdPresence or ThresholdPoint in time (spot)

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 12501-3 | HealthAssure