LOINC

LOINC Code 5427-0: CD11b Qn (WBC)

5427-0 is a LOINC code used to identify CD11b Qn (WBC) 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 CD11b. It is commonly used with the system or sample type WBC.

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 CD11b. It is commonly used with the system or sample type WBC.

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: DEPRECATED

What it does not mean

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

Key facts

  • Deprecated CD11b cells/100 cells in Blood
  • CD11b
  • AlphaM integrin chain; AlphaM-beta2; Arbitrary concentration; C3biR; CELL MARKERS; CR3; Leu15; Leu-15; Leukocytes; Mac-1; Mo1; Point in time; QNT; Quan; Quant; Quantitative; R3; Random; WBCs; 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

CD11b Qn (WBC)Deprecated CD11b cells/100 cells in BloodDeprecated CD11b WBC-aCncCD11bCELLMARKCD11b, White blood cellsACnc

Frequently asked questions

Code details

Code5427-0
SystemLOINC
Display nameCD11b Qn (WBC)
DescriptionCD11b
Short nameDeprecated CD11b WBC-aCnc
ComponentCD11b
PropertyACnc
TimingPt
System (specimen)WBC
ScaleQn
ClassCELLMARK
StatusDEPRECATED

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.69

Consumer names

CD11b, White blood cells

Part names

CD11bACncPtWBCQnArbitrary ConcentrationPoint in time (spot)White blood cells

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 5427-0 | HealthAssure