LOINCActiveObservation

LOINC Code 17188-4: CD66e cells/Cells (Bld)

17188-4 is a LOINC code used to identify CD66e cells/Cells (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 Cells.CD66e/Cells. 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.CD66e/Cells. 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

  • CD66e cells/cells in Blood
  • Cells.CD66e/Cells
  • Blood; Carcinoembryonic antigen; CD66e Cells; CEA; Cell; CELL MARKERS; Cellularity; Number fraction; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; 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

CD66e cells/Cells (Bld)CD66e cells/cells in BloodCD66e Cells NFr BldCells.CD66e/CellsCELLMARKCD66e cells/cells, BloodNFr

Frequently asked questions

Code details

Code17188-4
SystemLOINC
Display nameCD66e cells/Cells (Bld)
DescriptionCells.CD66e/Cells
Short nameCD66e Cells NFr Bld
ComponentCells.CD66e/Cells
PropertyNFr
TimingPt
System (specimen)Bld
ScaleQn
ClassCELLMARK
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0l
Last changed2.79

Consumer names

CD66e cells/cells, Blood

Part names

Cells.CD66e/CellsNFrPtBldQnNumber FractionPoint 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 17188-4 | HealthAssure