LOINCActiveOrder

LOINC Code 94266-4: CD11a, CD11b, and CD18 phenotyping panel Ql (Bld)

94266-4 is a LOINC code used to identify CD11a, CD11b, and CD18 phenotyping panel Ql (Bld) 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 CD11a & CD11b & CD18 phenotyping panel. It is commonly used with the system or sample type Bld.

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 CD11a & CD11b & CD18 phenotyping panel. 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: Order
  • Panel type: Panel

What it does not mean

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

Key facts

  • CD11a, CD11b, and CD18 phenotyping panel - Blood Qualitative
  • CD11a & CD11b & CD18 phenotyping panel
  • Flow cytometric immunophenotyping evaluation for presence or absence of the CD11/CD18 complex using monoclonal antibodies directed against the CD11 isoforms, CD11a and CD11b, and CD18 antigens. Defects in CD18 expression lead to either very low or no surface membrane expression of alpha chains CD11a, CD11b, and CD11c. Testing is performed for the diagnosis of leukocyte adhesion deficiency syndrome type 1 (LAD-1), an autosomal recessive disorder caused by mutations in the common chain (CD18) of the beta2-integrin family.
  • AlphaL integrin chain; AlphaM integrin chain; AlphaM-beta2; Beta2; Beta-2 integrin; Beta-2 integrin chain; Blood; C3biR; CD11a + CD11b + CD18 Pnl; CD11a beta subunit; CD11b beta subunit; CD11c beta subunit; CELL MARKERS; CR3; LAD-1; Leu15; Leu-15; Leukocyte Adhesion Deficiency Syndrome; Leukocyte adhesion deficiency syndrome type 1; LFA-1alpha; Mac-1; Mo1; Ordinal; Pan; PANEL.CELLMARK; Panl; Pheno; Phenotypic; Pnl; Point in time; QL; Qual; Qualitative; R3; Random; Screen; WB; 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

CD11a, CD11b, and CD18 phenotyping panel Ql (Bld)CD11a, CD11b, and CD18 phenotyping panel - Blood QualitativeCD11a + CD11b + CD18 Pnl BldCD11a & CD11b & CD18 phenotyping panelPANEL.CELLMARKCD11a, CD11b, and CD18 phenotyping panel, Blood-

Frequently asked questions

Code details

Code94266-4
SystemLOINC
Display nameCD11a, CD11b, and CD18 phenotyping panel Ql (Bld)
DescriptionCD11a & CD11b & CD18 phenotyping panel
Short nameCD11a + CD11b + CD18 Pnl Bld
ComponentCD11a & CD11b & CD18 phenotyping panel
Property-
TimingPt
System (specimen)Bld
ScaleOrd
ClassPANEL.CELLMARK
StatusACTIVE
Order/ObservationOrder

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.68
Last changed2.68

Consumer names

CD11a, CD11b, and CD18 phenotyping panel, Blood

Part names

CD11a & CD11b & CD18 phenotyping panel-PtBldOrdCD11a, CD11b, and CD18 phenotyping panelPoint 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 94266-4 | HealthAssure