LOINCActiveObservation

LOINC Code 50785-5: CD18 cells actual/normal (Bld) [Rel units/Vol]

50785-5 is a LOINC code used to identify CD18 cells actual/normal (Bld) [Rel units/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 Cells.CD18 actual/normal. 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 Cells.CD18 actual/normal. 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

  • CD18 cells actual/normal in Blood
  • Cells.CD18 actual/normal
  • Receptor surface density of patient cells compared to normal neutrophils.
  • Act/Nor; Beta2; Beta-2 integrin; Beta-2 integrin chain; Blood; CD11a beta subunit; CD11b beta subunit; CD11c beta subunit; CD18 Cells; Cell; CELL MARKERS; Cellularity; Control; Point in time; QNT; Quan; Quant; Quantitative; Random; RlACnc; 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

CD18 cells actual/normal (Bld) [Rel units/Vol]CD18 cells actual/normal in BloodCD18 Cells Act/Nor BldCells.CD18 actual/normalCELLMARKCD18 cells actual/normal, BloodRelACnc

Frequently asked questions

Code details

Code50785-5
SystemLOINC
Display nameCD18 cells actual/normal (Bld) [Rel units/Vol]
DescriptionCells.CD18 actual/normal
Short nameCD18 Cells Act/Nor Bld
ComponentCells.CD18 actual/normal
PropertyRelACnc
TimingPt
System (specimen)Bld
ScaleQn
ClassCELLMARK
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.22
Last changed2.73

Consumer names

CD18 cells actual/normal, Blood

Part names

Cells.CD18 actual/normalRelACncPtBldQnRelative Arbitrary 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 50785-5 | HealthAssure