What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 57845-0: WBC Auto (Body fld) [#/Vol]

Name: LOINC Code 57845-0: WBC Auto (Body fld) [#/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

57845-0 is a LOINC code used to identify WBC Auto (Body fld) [#/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 Leukocytes. It is commonly used with the system or sample type Body fld.

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 Leukocytes. It is commonly used with the system or sample type Body fld.

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
Method: Automated count

What it does not mean

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

Key facts

Leukocytes [#/volume] in Body fluid by Automated count
Leukocytes
#; ABS; absolute; absolutes; Auto; Automated detection; B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; Cnt; Count; Count/volume; CT; Elec; Elect; Electr; Fl; Fld; FLU; Fluid; HEMATOLOGY/CELL COUNTS; Leuc; Leuk; Leukocyte; Lkcs; Number concentration; Number Concentration (count/vol); Point in time; QNT; Quan; Quant; Quantitative; Random; 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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for WBC Auto (Body fld) [#/Vol] (57845-0)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

WBC Auto (Body fld) [#/Vol]Leukocytes [#/volume] in Body fluid by Automated countWBC # Fld AutoLeukocytesHEM/BCWhite blood cell (WBC) count, Body fluidNCnc

Frequently asked questions

Code details

Code57845-0

SystemLOINC

Display nameWBC Auto (Body fld) [#/Vol]

DescriptionLeukocytes

Short nameWBC # Fld Auto

ComponentLeukocytes

PropertyNCnc

TimingPt

System (specimen)Body fld

ScaleQn

MethodAutomated count

ClassHEM/BC

Example units10*9/L

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.29

Last changed2.73

Consumer names

White blood cell (WBC) count, Body fluid

Part names

LeukocytesNCncPtBody fldQnAutomated countNumber ConcentrationPoint in time (spot)Body fluid

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.