LOINCActiveBoth

LOINC Code 27311-0: Codeine Free (Stl) [Mass/Mass]

27311-0 is a LOINC code used to identify Codeine Free (Stl) [Mass/Mass] 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 Codeine.free. 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 Codeine.free. 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

  • Codeine Free [Mass/mass] in Stool
  • Codeine.free
  • Bowel movement; c260; C300; Codeine Free; DRUG/TOXICOLOGY; Drugs; Faecal; Faeces; Fecal; Feces; FR; Mass content; Methylmorphine; Morphine methyl ether; Non-protein bound; Point in time; QNT; Quan; Quant; Quantitative; Random; 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

Codeine Free (Stl) [Mass/Mass]Codeine Free [Mass/mass] in StoolCodeine Free Stl-mCntCodeine.freeDRUG/TOXFree codeine, StoolMCnt

Frequently asked questions

Code details

Code27311-0
SystemLOINC
Display nameCodeine Free (Stl) [Mass/Mass]
DescriptionCodeine.free
Short nameCodeine Free Stl-mCnt
ComponentCodeine.free
PropertyMCnt
TimingPt
System (specimen)Stool
ScaleQn
ClassDRUG/TOX
Example unitsng/g
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Free codeine, Stool

Part names

Codeine.freeMCntPtStoolQnCodeine FreeMass ContentPoint 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 27311-0 | HealthAssure