LOINCActiveObservation

LOINC Code 51383-8: WBC other Auto (Bld) [#/Vol]

51383-8 is a LOINC code used to identify WBC other Auto (Bld) [#/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 other. It is commonly used with the system or sample type Bld.

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 other. It is commonly used with the system or sample type Bld.

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

  • Leukocytes other [#/volume] in Blood by Automated count
  • Leukocytes other
  • #; ABS; absolute; absolutes; Auto; Automated detection; Blood; Cnt; Count; Count/volume; CT; Elec; Elect; Electr; HEMATOLOGY/CELL COUNTS; Leuc; Leuk; Leukocyte; Lkcs; Number concentration; Number Concentration (count/vol); Othr; Point in time; QNT; Quan; Quant; Quantitative; Random; WB; WBC; WBC Other; WBCs; White blood cell; White blood cells; Whole blood

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 other Auto (Bld) [#/Vol]Leukocytes other [#/volume] in Blood by Automated countWBC Other # Bld AutoLeukocytes otherHEM/BCOther white blood cells, BloodNCnc

Frequently asked questions

Code details

Code51383-8
SystemLOINC
Display nameWBC other Auto (Bld) [#/Vol]
DescriptionLeukocytes other
Short nameWBC Other # Bld Auto
ComponentLeukocytes other
PropertyNCnc
TimingPt
System (specimen)Bld
ScaleQn
MethodAutomated count
ClassHEM/BC
Example units10*9/L
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.22
Last changed2.70

Consumer names

Other white blood cells, Blood

Part names

Leukocytes otherNCncPtBldQnAutomated countNumber ConcentrationPoint in time (spot)Blood

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 51383-8 | HealthAssure