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LOINC Code 27931-5: Bile acid 2 Hr post meal (S) [Moles/Vol]

27931-5 is a LOINC code used to identify Bile acid 2 Hr post meal (S) [Moles/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 Bile acid^2H post meal. It is commonly used with the system or sample type Ser.

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 Bile acid^2H post meal. It is commonly used with the system or sample type Ser.

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

  • Bile acid [Moles/volume] in Serum --2 hours post meal
  • Bile acid^2H post meal
  • 120 min; 120 minutes; 120min; 2 hours; 2h p meal; Acd; Acids; After; Bile acid.total; Bile salt; CHEMISTRY.CHALLENGE TESTING; Level; p meal; PC; Point in time; Post Pran; Post prandial; PP; PST; QNT; Quan; Quant; Quantitative; Random; Serum; SR; Substance concentration

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

Bile acid 2 Hr post meal (S) [Moles/Vol]Bile acid [Moles/volume] in Serum --2 hours post mealBile Ac 2h p meal Ser-sCncBile acid^2H post mealCHALBile acid 2 hr after Meal, BloodSCnc

Frequently asked questions

Code details

Code27931-5
SystemLOINC
Display nameBile acid 2 Hr post meal (S) [Moles/Vol]
DescriptionBile acid^2H post meal
Short nameBile Ac 2h p meal Ser-sCnc
ComponentBile acid^2H post meal
PropertySCnc
TimingPt
System (specimen)Ser
ScaleQn
ClassCHAL
Example unitsumol/L
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.70

Consumer names

Bile acid 2 hr after Meal, Blood

Part names

Bile acid^2H post mealSCncPtSerQnSubstance ConcentrationPoint in time (spot)Serum

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.