LOINCActiveObservation

LOINC Code 74406-0: Basophils (BldCo) [#/Vol]

74406-0 is a LOINC code used to identify Basophils (BldCo) [#/Vol] 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 Basophils. It is commonly used with the system or sample type BldCo.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 Basophils. It is commonly used with the system or sample type BldCo.

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

  • Basophils [#/volume] in Cord blood
  • Basophils
  • #; ABS; absolute; absolutes; Baso; Basophil; Basos; Blood - (umbilical) cord; Bph; Cnt; Cord (umbilical) blood; Cord bld; Cord blood; Count; Count/volume; CT; HEMATOLOGY/CELL COUNTS; Number concentration; Number Concentration (count/vol); Point in time; QNT; Quan; Quant; Quantitative; Random

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

Basophils (BldCo) [#/Vol]Basophils [#/volume] in Cord bloodBasophils # BldCoBasophilsHEM/BCBasophils, Cord bloodNCnc

Frequently asked questions

Code details

Code74406-0
SystemLOINC
Display nameBasophils (BldCo) [#/Vol]
DescriptionBasophils
Short nameBasophils # BldCo
ComponentBasophils
PropertyNCnc
TimingPt
System (specimen)BldCo
ScaleQn
ClassHEM/BC
Example units10*9/L
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Basophils, Cord blood

Part names

BasophilsNCncPtBldCoQnNumber ConcentrationPoint in time (spot)Blood cord

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 74406-0 | HealthAssure