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LOINC Code 74464-9: Platelets Manual cnt (BldC) [#/Vol]

74464-9 is a LOINC code used to identify Platelets Manual cnt (BldC) [#/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 Platelets. It is commonly used with the system or sample type BldC.

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 Platelets. It is commonly used with the system or sample type BldC.

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: Both
  • Method: Manual count

What it does not mean

  • The code identifies the observation or test, not the actual result.

Key facts

Platelets [#/volume] in Capillary blood by Manual count
Platelets
Studies suggest that capillary cell counts can have values different from venous blood. One study reported significantly higher venous platelet counts in neonates compared to the corresponding capillary values. The study also found the capillary blood samples had higher Hb, Hct, red blood cell (RBC), white blood cell (WBC), and lymphocyte counts. [PMID12542436]
#; ABS; absolute; absolutes; Blood - capillary; Cap bld; Cap blood; Capillary bld; Capillary blood; Cnt; Count; Count/volume; CT; Finger stick; HEMATOLOGY/CELL COUNTS; Manl; Number concentration; Number Concentration (count/vol); Platelet; Platelet count; Platelt; Plt; Point in time; QNT; Quan; Quant; Quantitative; Random; Thrb; Thrombocyte; Thrombocytes

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

Platelets Manual cnt (BldC) [#/Vol]Platelets [#/volume] in Capillary blood by Manual countPlatelet # BldC ManualPlateletsHEM/BCPlatelet count, BloodNCnc

Frequently asked questions

Code details

Code74464-9
SystemLOINC
Display namePlatelets Manual cnt (BldC) [#/Vol]
DescriptionPlatelets
Short namePlatelet # BldC Manual
ComponentPlatelets
PropertyNCnc
TimingPt
System (specimen)BldC
ScaleQn
MethodManual count
ClassHEM/BC
Example units10*9/L
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

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

Consumer names

Platelet count, Blood

Part names

PlateletsNCncPtBldCQnManual countNumber ConcentrationPoint in time (spot)Blood capillary

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 74464-9 | HealthAssure