What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 51146-9: CD3 blasts Qn (BM)

Name: LOINC Code 51146-9: CD3 blasts Qn (BM)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:35.011Z

51146-9 is a LOINC code used to identify CD3 blasts Qn (BM) 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 Bone mar.

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 Bone mar.

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 Bone marrow
Blasts.CD3
Arbitrary concentration; Blast; BM; BON; Bone marrow; CD3 Blasts; CELL MARKERS; Leu4; Leu-4; MAR; Marrow (bone); minimal angle of resolution; Minimum angle of resolution; Point in time; QNT; Quan; Quant; Quantitative; Random; T3

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 (BM)CD3 blasts [Units/volume] in Bone marrowCD3 Blasts Mar-aCncBlasts.CD3CELLMARKCD3 blasts, Bone marrowACnc

Frequently asked questions

Code details

Code51146-9

SystemLOINC

Display nameCD3 blasts Qn (BM)

DescriptionBlasts.CD3

Short nameCD3 Blasts Mar-aCnc

ComponentBlasts.CD3

PropertyACnc

TimingPt

System (specimen)Bone mar

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, Bone marrow

Part names

Blasts.CD3ACncPtBone marQnCD3 blastsArbitrary ConcentrationPoint in time (spot)Bone marrow

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.