LOINCActiveObservation

LOINC Code 12227-5: WBC corrected for nucl RBC (Bld) [#/Vol]

12227-5 is a LOINC code used to identify WBC corrected for nucl RBC (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^^corrected for nucleated erythrocytes. 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^^corrected for nucleated erythrocytes. 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

What it does not mean

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

Key facts

  • Leukocytes [#/volume] corrected for nucleated erythrocytes in Blood
  • Leukocytes^^corrected for nucleated erythrocytes
  • #; ABS; absolute; absolutes; Blood; Cnt; Count; Count/volume; CT; Discocytes; Erthrocyte; Erythrocyte; HEMATOLOGY/CELL COUNTS; Leuc; Leuk; Leukocyte; Lkcs; nRBC cor; Nuc; Number concentration; Number Concentration (count/vol); Point in time; QNT; Quan; Quant; Quantitative; Random; RBC; RBCS; Red blood cell; Red blood cells; Red blood corpuscle; Red blood corpusles; Red cell; Red cells; WB; WBC; 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 corrected for nucl RBC (Bld) [#/Vol]Leukocytes [#/volume] corrected for nucleated erythrocytes in BloodWBC nRBC cor # BldLeukocytes^^corrected for nucleated erythrocytesHEM/BCWhite blood cell (WBC) count Corrected for Nucleated Red Blood Cells, BloodNCnc

Frequently asked questions

Code details

Code12227-5
SystemLOINC
Display nameWBC corrected for nucl RBC (Bld) [#/Vol]
DescriptionLeukocytes^^corrected for nucleated erythrocytes
Short nameWBC nRBC cor # Bld
ComponentLeukocytes^^corrected for nucleated erythrocytes
PropertyNCnc
TimingPt
System (specimen)Bld
ScaleQn
ClassHEM/BC
Example units10*9/L
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0j-a
Last changed2.73

Consumer names

White blood cell (WBC) count Corrected for Nucleated Red Blood Cells, Blood

Part names

Leukocytes^^corrected for nucleated erythrocytesNCncPtBldQnNumber 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 12227-5 | HealthAssure