LOINCActiveBoth

LOINC Code 27297-1: Leukocyte esterase Qn (U)

27297-1 is a LOINC code used to identify Leukocyte esterase Qn (U) 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 Leukocyte esterase. It is commonly used with the system or sample type Urine.

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 Leukocyte esterase. It is commonly used with the system or sample type Urine.

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

  • Leukocyte esterase [Units/volume] in Urine
  • Leukocyte esterase
  • Arbitrary concentration; Leuc; Leuk; Leukocytes; Lkcs; Point in time; QNT; Quan; Quant; Quantitative; Random; UA; UR; URINALYSIS; Urn; WBC; WBCs; White blood cell; White blood cells

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

Leukocyte esterase Qn (U)Leukocyte esterase [Units/volume] in UrineLeukocyte esterase Ur-aCncLeukocyte esteraseUALeukocyte esterase, UrineACnc

Frequently asked questions

Code details

Code27297-1
SystemLOINC
Display nameLeukocyte esterase Qn (U)
DescriptionLeukocyte esterase
Short nameLeukocyte esterase Ur-aCnc
ComponentLeukocyte esterase
PropertyACnc
TimingPt
System (specimen)Urine
ScaleQn
ClassUA
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.00
Last changed2.73

Consumer names

Leukocyte esterase, Urine

Part names

Leukocyte esteraseACncPtUrineQnArbitrary ConcentrationPoint 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 27297-1 | HealthAssure