LOINCActiveBoth

LOINC Code 12726-6: Leucine-enkephalin Qn

12726-6 is a LOINC code used to identify Leucine-enkephalin Qn 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 Leucine-enkephalin. It is commonly used with the system or sample type Ser/Plas.

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 Leucine-enkephalin. It is commonly used with the system or sample type Ser/Plas.

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

  • Leucine-enkephalin [Units/volume] in Serum or Plasma
  • Leucine-enkephalin
  • Arbitrary concentration; Chemistry; Leu; Leu-Enkephalin; Pl; Plasma; Plsm; Point in time; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR

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

Leucine-enkephalin QnLeucine-enkephalin [Units/volume] in Serum or PlasmaLeucine-Enkephalin SerPl-aCncLeucine-enkephalinCHEMLeucine-enkephalin, BloodACnc

Frequently asked questions

Code details

Code12726-6
SystemLOINC
Display nameLeucine-enkephalin Qn
DescriptionLeucine-enkephalin
Short nameLeucine-Enkephalin SerPl-aCnc
ComponentLeucine-enkephalin
PropertyACnc
TimingPt
System (specimen)Ser/Plas
ScaleQn
ClassCHEM
Example unitspg/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0j-a
Last changed2.44

Consumer names

Leucine-enkephalin, Blood

Part names

Leucine-enkephalinACncPtSer/PlasQnArbitrary ConcentrationPoint in time (spot)Serum or Plasma

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 12726-6 | HealthAssure