LOINCActiveObservation

LOINC Code 51486-9: Epithelial cells.squamous Auto (U) [#/Vol]

51486-9 is a LOINC code used to identify Epithelial cells.squamous Auto (U) [#/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 Epithelial cells.squamous. It is commonly used with the system or sample type Urine.

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 Epithelial cells.squamous. 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: Observation
  • Method: Automated count

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

  • Epithelial cells.squamous [#/volume] in Urine by Automated count
  • Epithelial cells.squamous
  • Automated counters measure the number concentration directly and calculate values for the per HPF (or per LPF) when the laboratory chooses them.
  • #; ABS; absolute; absolutes; Auto; Automated detection; Cell; Cellularity; Cnt; Count; Count/volume; CT; Elec; Elect; Electr; Epi; Epi Cells; Epith; Epithelia; Number concentration; Number Concentration (count/vol); Point in time; QNT; Quan; Quant; Quantitative; Random; SEC; Sq; Squamous cell; Squamous epithelial cell; Squamous epithelial cells; UA; UR; URINALYSIS; Urn

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

Epithelial cells.squamous Auto (U) [#/Vol]Epithelial cells.squamous [#/volume] in Urine by Automated countSquamous # Ur AutoEpithelial cells.squamousUAEpithelial cells.squamous, UrineNCnc

Frequently asked questions

Code details

Code51486-9
SystemLOINC
Display nameEpithelial cells.squamous Auto (U) [#/Vol]
DescriptionEpithelial cells.squamous
Short nameSquamous # Ur Auto
ComponentEpithelial cells.squamous
PropertyNCnc
TimingPt
System (specimen)Urine
ScaleQn
MethodAutomated count
ClassUA
Example units/uL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.22
Last changed2.73

Consumer names

Epithelial cells.squamous, Urine

Part names

Epithelial cells.squamousNCncPtUrineQnAutomated countNumber 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 51486-9 | HealthAssure