LOINCActiveObservation

LOINC Code 51147-7: CD3 blasts Qn (Bld)

51147-7 is a LOINC code used to identify CD3 blasts Qn (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 Blasts.CD3. 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 Blasts.CD3. 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

  • CD3 blasts [Units/volume] in Blood
  • Blasts.CD3
  • Arbitrary concentration; Blast; Blood; CD3 Blasts; CELL MARKERS; Leu4; Leu-4; Point in time; QNT; Quan; Quant; Quantitative; Random; T3; 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

CD3 blasts Qn (Bld)CD3 blasts [Units/volume] in BloodCD3 Blasts Bld-aCncBlasts.CD3CELLMARKCD3 blasts, BloodACnc

Frequently asked questions

Code details

Code51147-7
SystemLOINC
Display nameCD3 blasts Qn (Bld)
DescriptionBlasts.CD3
Short nameCD3 Blasts Bld-aCnc
ComponentBlasts.CD3
PropertyACnc
TimingPt
System (specimen)Bld
ScaleQn
ClassCELLMARK
Example unitsMean Fluorescent Intensity
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

CD3 blasts, Blood

Part names

Blasts.CD3ACncPtBldQnCD3 blastsArbitrary 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 51147-7 | HealthAssure