LOINCActiveObservation

LOINC Code 26466-3: WBC (Body fld) [#/Vol]

26466-3 is a LOINC code used to identify WBC (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: Observation

What it does not mean

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

Key facts

  • Leukocytes [#/volume] in Body fluid
  • Leukocytes
  • #; ABS; absolute; absolutes; B/F; BF; bod; Bodies; Body fluid; Body fluid, unsp; Cnt; Count; Count/volume; CT; 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.

Common synonyms

WBC (Body fld) [#/Vol]Leukocytes [#/volume] in Body fluidWBC # FldLeukocytesHEM/BCWhite blood cell (WBC) count, Body fluidNCnc

Frequently asked questions

Code details

Code26466-3
SystemLOINC
Display nameWBC (Body fld) [#/Vol]
DescriptionLeukocytes
Short nameWBC # Fld
ComponentLeukocytes
PropertyNCnc
TimingPt
System (specimen)Body fld
ScaleQn
ClassHEM/BC
Example units/uL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

White blood cell (WBC) count, Body fluid

Part names

LeukocytesNCncPtBody fldQnNumber 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.

LOINC Code 26466-3 | HealthAssure