LOINCActiveObservation

LOINC Code 74460-7: Blasts/Leukocytes (Bld fetus)

74460-7 is a LOINC code used to identify Blasts/Leukocytes (Bld fetus) 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/Leukocytes. It is commonly used with the system or sample type Bld^Fetus.

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/Leukocytes. It is commonly used with the system or sample type Bld^Fetus.

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

  • Blasts/Leukocytes in Blood from Fetus
  • Blasts/Leukocytes
  • Blast; Blood; Fetal; Gyn; Gynecology; HEMATOLOGY/CELL COUNTS; Leuc; Leuk; Leukocyte; Lkcs; Number fraction; OB; ObGyn; Obstetrics; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; WB; WBC; WBCs; White blood cell; White blood cells; 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

Blasts/Leukocytes (Bld fetus)Blasts/Leukocytes in Blood from FetusBlasts NFr Bld FetusBlasts/LeukocytesHEM/BCFetal Blasts/White Blood CellsNFr

Frequently asked questions

Code details

Code74460-7
SystemLOINC
Display nameBlasts/Leukocytes (Bld fetus)
DescriptionBlasts/Leukocytes
Short nameBlasts NFr Bld Fetus
ComponentBlasts/Leukocytes
PropertyNFr
TimingPt
System (specimen)Bld^Fetus
ScaleQn
ClassHEM/BC
Example units%
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.46
Last changed2.79

Consumer names

Fetal Blasts/White Blood Cells

Part names

Blasts/leukocytesNFrPtBld^FetusQnNumber FractionPoint in time (spot)Blood^Fetus

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 74460-7 | HealthAssure