LOINCActiveObservation

LOINC Code 33775-8: CD41a cells/Cells (Specimen)

33775-8 is a LOINC code used to identify CD41a cells/Cells (Specimen) 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.CD41a/Cells. It is commonly used with the system or sample type XXX.

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.CD41a/Cells. It is commonly used with the system or sample type XXX.

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

  • CD41a cells/cells in Specimen
  • Cells.CD41a/Cells
  • CD41a Cells; Cell; CELL MARKERS; Cellularity; Misc; Miscellaneous; Number fraction; Other; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; Spec; To be specified in another part of the message; Unspecified

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

CD41a cells/Cells (Specimen)CD41a cells/cells in SpecimenCD41a Cells NFr SpecCells.CD41a/CellsCELLMARKCD41a cells/cells, SpecimenNFr

Frequently asked questions

Code details

Code33775-8
SystemLOINC
Display nameCD41a cells/Cells (Specimen)
DescriptionCells.CD41a/Cells
Short nameCD41a Cells NFr Spec
ComponentCells.CD41a/Cells
PropertyNFr
TimingPt
System (specimen)XXX
ScaleQn
ClassCELLMARK
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.09
Last changed2.79

Consumer names

CD41a cells/cells, Specimen

Part names

Cells.CD41a/CellsNFrPtXXXQnNumber FractionPoint in time (spot)

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 33775-8 | HealthAssure