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.

LOINCActiveOrder

LOINC Code 72661-2: Intrinsic coagulation factor activity 4 panel Coag (PPP)

Name: LOINC Code 72661-2: Intrinsic coagulation factor activity 4 panel Coag (PPP)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:51.525Z

72661-2 is a LOINC code used to identify Intrinsic coagulation factor activity 4 panel Coag (PPP) 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 Intrinsic coagulation factor activity 4 panel. 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 Intrinsic coagulation factor activity 4 panel. 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: Order
Panel type: Panel
Method: Coag

What it does not mean

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

Key facts

Intrinsic coagulation factor activity 4 panel - Platelet poor plasma by Coagulation assay
Intrinsic coagulation factor activity 4 panel
Activ; Actvty; Clot; Clottable; Coag; Coagulation assay; Fac; Fact; Intrnsc coag fctr act pnl; Movements; Pan; PANEL.COAGULATION; Panl; Plas; Platelet poor plasma; Pnl; Point in time; Random; Tilt tube

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

Intrinsic coagulation factor activity 4 panel Coag (PPP)Intrinsic coagulation factor activity 4 panel - Platelet poor plasma by Coagulation assayIntrnsc coag fctr act pnl PPPIntrinsic coagulation factor activity 4 panelPANEL.COAGIntrinsic coagulation factor activity 4 panel, Blood-

Frequently asked questions

Code details

Code72661-2

SystemLOINC

Display nameIntrinsic coagulation factor activity 4 panel Coag (PPP)

DescriptionIntrinsic coagulation factor activity 4 panel

Short nameIntrnsc coag fctr act pnl PPP

ComponentIntrinsic coagulation factor activity 4 panel

Property-

TimingPt

System (specimen)PPP

Scale-

MethodCoag

ClassPANEL.COAG

StatusACTIVE

Order/ObservationOrder

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.42

Last changed2.42

Consumer names

Intrinsic coagulation factor activity 4 panel, Blood

Part names

Intrinsic coagulation factor activity 4 panel-PtPPPCoagPoint in time (spot)Platelet poor plasmaCoagulation assay

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.