LOINCActiveObservation

LOINC Code 51171-7: CD34+CD117+ blasts Qn (Bld)

51171-7 is a LOINC code used to identify CD34+CD117+ 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.CD34+CD117+. 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.CD34+CD117+. 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

  • CD34+CD117+ blasts [Units/volume] in Blood
  • Blasts.CD34+CD117+
  • Arbitrary concentration; Blast; Blood; CD34 Blasts; CD34+CD117+ Blasts; CELL MARKERS; c-KIT; gp105-120; Hematopoietic stem cell; HSC; My10; My-10; Point in time; QNT; Quan; Quant; Quantitative; Random; SCFR; stem cell factor receptor; Stem cells; 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

CD34+CD117+ blasts Qn (Bld)CD34+CD117+ blasts [Units/volume] in BloodCD34+CD117+ Blasts Bld-aCncBlasts.CD34+CD117+CELLMARKCD34+CD117+ blasts, BloodACnc

Frequently asked questions

Code details

Code51171-7
SystemLOINC
Display nameCD34+CD117+ blasts Qn (Bld)
DescriptionBlasts.CD34+CD117+
Short nameCD34+CD117+ Blasts Bld-aCnc
ComponentBlasts.CD34+CD117+
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

CD34+CD117+ blasts, Blood

Part names

Blasts.CD34+CD117+ACncPtBldQnCD34+CD117+ 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 51171-7 | HealthAssure