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.

LOINCActiveBoth

LOINC Code 76137-9: Platelet component distribution width Calc (Bld) [Mass/Vol]

Name: LOINC Code 76137-9: Platelet component distribution width Calc (Bld) [Mass/Vol]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:56.388Z

76137-9 is a LOINC code used to identify Platelet component distribution width Calc (Bld) [Mass/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 Platelet component distribution width. 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 Platelet component distribution width. 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: Both
Method: Calculated

What it does not mean

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

Key facts

Platelet component distribution width [Mass/volume] in Blood by calculation
Platelet component distribution width
This term was based on, but not limited in use to, the SIEMENS ADVIA 120 Hematology System.
Blood; Calc; Calculation; HEMATOLOGY/CELL COUNTS; Level; Mass concentration; PCDW; Pl; Platelets; Platelt; Plt; Point in time; QNT; Quan; Quant; Quantitative; Random; Thrombocyte; Thrombocytes; 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

Platelet component distribution width Calc (Bld) [Mass/Vol]Platelet component distribution width [Mass/volume] in Blood by calculationPCDW Bld Calc-mCncPlatelet component distribution widthHEM/BCPlatelet component distribution width, BloodMCnc

Frequently asked questions

Code details

Code76137-9

SystemLOINC

Display namePlatelet component distribution width Calc (Bld) [Mass/Vol]

DescriptionPlatelet component distribution width

Short namePCDW Bld Calc-mCnc

ComponentPlatelet component distribution width

PropertyMCnc

TimingPt

System (specimen)Bld

ScaleQn

MethodCalculated

ClassHEM/BC

Example unitsg/dL

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.52

Last changed2.52

Consumer names

Platelet component distribution width, Blood

Part names

Platelet component distribution widthMCncPtBldQnCalculatedMass 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.