LOINCActiveBoth

LOINC Code 49008-6: Clot Retraction (Bld) [Volume fraction]

49008-6 is a LOINC code used to identify Clot Retraction (Bld) [Volume fraction] 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 Coagulum retraction. 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 Coagulum retraction. 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

What it does not mean

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

Key facts

  • Clot Retraction [Volume Fraction] in Blood
  • Coagulum retraction
  • Blood; Clot Retract; Clot retraction; COAGULATION; Hematology; Heme; Percent; Point in time; QNT; Quan; Quant; Quantitative; Random; Retract; Volfr; Volume fraction; 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

Clot Retraction (Bld) [Volume fraction]Clot Retraction [Volume Fraction] in BloodClot Retract VFr BldCoagulum retractionCOAGClot retraction, BloodVFr

Frequently asked questions

Code details

Code49008-6
SystemLOINC
Display nameClot Retraction (Bld) [Volume fraction]
DescriptionCoagulum retraction
Short nameClot Retract VFr Bld
ComponentCoagulum retraction
PropertyVFr
TimingPt
System (specimen)Bld
ScaleQn
ClassCOAG
Example units%
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.21
Last changed2.42

Consumer names

Clot retraction, Blood

Part names

Coagulum retractionVFrPtBldQnClot RetractionVolume FractionPoint 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 49008-6 | HealthAssure