LOINCActiveBoth

LOINC Code 59166-9: Bilirubin (24H Stl) [Moles/Time]

59166-9 is a LOINC code used to identify Bilirubin (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 Bilirubin. 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 Bilirubin. 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

  • Bilirubin.total [Moles/time] in 24 hour Stool
  • Bilirubin
  • 1 day; 24 hours; 24HR; Bili; Bilirubins; Billirubin; Bowel movement; Chemistry; Faecal; Faeces; Fecal; Feces; QNT; Quan; Quant; Quantitative; sRate; Stl; Stool = Fecal; Substance Rate; TBIL

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

Bilirubin (24H Stl) [Moles/Time]Bilirubin.total [Moles/time] in 24 hour StoolBilirub 24h Stl-sRateBilirubinCHEMBilirubin, StoolSRat

Frequently asked questions

Code details

Code59166-9
SystemLOINC
Display nameBilirubin (24H Stl) [Moles/Time]
DescriptionBilirubin
Short nameBilirub 24h Stl-sRate
ComponentBilirubin
PropertySRat
Timing24H
System (specimen)Stool
ScaleQn
ClassCHEM
Example unitsmmol/d
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.32
Last changed2.70

Consumer names

Bilirubin, Stool

Part names

BilirubinSRat24HStoolQnSubstance 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.

LOINC Code 59166-9 | HealthAssure