LOINCActiveBoth

LOINC Code 3183-1: Clotting time Lee White method (Bld)

3183-1 is a LOINC code used to identify Clotting time Lee White method (Bld) 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 Clotting time. 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 Clotting time. 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: Lee White

What it does not mean

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

Key facts

  • Clotting time of Blood by Lee White method
  • Clotting time
  • Blood; Clot; Clot tm; Clottable; COAGULATION; Coagulation time; Hematology; Heme; Point in time; QNT; Quan; Quant; Quantitative; Random; Rate; R-time; 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

Clotting time Lee White method (Bld)Clotting time of Blood by Lee White methodClot tm Bld Lee WhiteClotting timeCOAGClotting time, BloodTime

Frequently asked questions

Code details

Code3183-1
SystemLOINC
Display nameClotting time Lee White method (Bld)
DescriptionClotting time
Short nameClot tm Bld Lee White
ComponentClotting time
PropertyTime
TimingPt
System (specimen)Bld
ScaleQn
MethodLee White
ClassCOAG
Example unitss
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.82

Consumer names

Clotting time, Blood

Part names

Clotting timeTimePtBldQnLee WhiteTime (e.g. seconds)Point in time (spot)BloodLee White clotting time method

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 3183-1 | HealthAssure