LOINCActiveObservation

LOINC Code 97009-5: ACT Thromboelastography.kaolin.tissue factor induced (Bld)

97009-5 is a LOINC code used to identify ACT Thromboelastography.kaolin.tissue factor induced (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 Activated 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 Activated 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: Observation
  • Method: Thromboelastography.kaolin.tissue factor induced

What it does not mean

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

Key facts

  • Activated clotting time (ACT) of Blood by Thromboelastography.kaolin.tissue factor induced
  • Activated clotting time
  • A calculated value based on conversion of the measured R value (clot initiation time), stimulated by kaolin and tissue factor. In RapidTEG the activated clotting time is called TEG-ACT.
  • ACT; Activ; Activated coagulation time; Blood; Clot; Clot tm; Clottable; COAGULATION; Coagulation activated; Coagulation time; Fac; Fact; Hematology; Heme; Point in time; QNT; Quan; Quant; Quantitative; Random; Rate; R-time; TEG; TEG Kaolin Tissue ind; TEG.kaolin.tissue factor induced; Thrombelastography; Thrombelastometry; 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

ACT Thromboelastography.kaolin.tissue factor induced (Bld)Activated clotting time (ACT) of Blood by Thromboelastography.kaolin.tissue factor inducedACT Bld TEG.kaolin.tissue factor inducedActivated clotting timeCOAGActivated clotting time, BloodTime

Frequently asked questions

Code details

Code97009-5
SystemLOINC
Display nameACT Thromboelastography.kaolin.tissue factor induced (Bld)
DescriptionActivated clotting time
Short nameACT Bld TEG.kaolin.tissue factor induced
ComponentActivated clotting time
PropertyTime
TimingPt
System (specimen)Bld
ScaleQn
MethodThromboelastography.kaolin.tissue factor induced
ClassCOAG
Example unitss
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.70
Last changed2.82

Consumer names

Activated clotting time, Blood

Part names

Activated clotting timeTimePtBldQnThromboelastography.kaolin.tissue factor inducedActivated clotting time (ACT)Time (e.g. seconds)Point 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 97009-5 | HealthAssure