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.

LOINCActiveObservation

LOINC Code 97910-4: Endogenous thrombin potential Chromogenic method (PPP) [Area under the curve]

Name: LOINC Code 97910-4: Endogenous thrombin potential Chromogenic method (PPP) [Area under the curve]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:31.427Z

97910-4 is a LOINC code used to identify Endogenous thrombin potential Chromogenic method (PPP) [Area under the curve] 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 Endogenous thrombin potential. It is commonly used with the system or sample type PPP.

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 Endogenous thrombin potential. It is commonly used with the system or sample type PPP.

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: Chromo

What it does not mean

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

Key facts

Endogenous thrombin potential [Area under the curve] in Platelet poor plasma by Chromogenic method

Endogenous thrombin potential

The endogenous thrombin potential is the area under the curve of a thrombin generation test (TGT). It represents thrombin's total enzyme activity and is the most predictive of bleeding and/or thrombosis risk out of all the TGT measurements. Decreased ETP is associated with bleeding tendencies, while increased ETP is associated with thrombosis. [PMID21262433]

AUC; Chromogenic assay; COAGULATION; ENZY; Enzymatic assay; ETP; Hematology; Heme; Plas; Platelet poor plasma; Point in time; QNT; Quan; Quant; Quantitative; Random; Throm

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

Endogenous thrombin potential Chromogenic method (PPP) [Area under the curve]Endogenous thrombin potential [Area under the curve] in Platelet poor plasma by Chromogenic methodETP PPP Chro-AUCEndogenous thrombin potentialCOAGEndogenous thrombin potential, BloodTmSCnc

Frequently asked questions

Code details

Code97910-4

SystemLOINC

Display nameEndogenous thrombin potential Chromogenic method (PPP) [Area under the curve]

DescriptionEndogenous thrombin potential

Short nameETP PPP Chro-AUC

ComponentEndogenous thrombin potential

PropertyTmSCnc

TimingPt

System (specimen)PPP

ScaleQn

MethodChromo

ClassCOAG

Example unitsnM*min

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.70

Last changed2.70

Consumer names

Endogenous thrombin potential, Blood

Part names

Endogenous thrombin potentialTmSCncPtPPPQnChromoArea under the curvePoint in time (spot)Platelet poor plasmaChromogenic (Enzyme)

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.