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.

LOINCBoth

LOINC Code 3225-0: Coagulation factor XI activated Coag (PPP) [Catalytic fraction]

Name: LOINC Code 3225-0: Coagulation factor XI activated Coag (PPP) [Catalytic fraction]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:18.900Z

3225-0 is a LOINC code used to identify Coagulation factor XI activated Coag (PPP) [Catalytic 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 Coagulation factor XI activated activity. 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 Coagulation factor XI activated activity. 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: DEPRECATED
Order vs observation: Both
Method: Coag

What it does not mean

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

Key facts

Deprecated Coagulation factor XI activated activity
Coagulation factor XI activated activity
Activ; Actvty; Antihemophilic factor C; Catalytic Fraction; Clot; Clottable; Coag; Coagulation assay; Fac; Fact; Fact XI; Fact XIa; Factor 11; FXI; Hematology; Heme; Movements; Percent; Plas; Plasma thromboplastin antecedent; Platelet poor plasma; Point in time; PTA; QNT; Quan; Quant; Quantitative; 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

Coagulation factor XI activated Coag (PPP) [Catalytic fraction]Deprecated Coagulation factor XI activated activityDeprecated Fact Xia Fr PPPCoagulation factor XI activated activityCOAGCoagulation Factor XI Activated, BloodCFr

Frequently asked questions

Code details

Code3225-0

SystemLOINC

Display nameCoagulation factor XI activated Coag (PPP) [Catalytic fraction]

DescriptionCoagulation factor XI activated activity

Short nameDeprecated Fact Xia Fr PPP

ComponentCoagulation factor XI activated activity

PropertyCFr

TimingPt

System (specimen)PPP

ScaleQn

MethodCoag

ClassCOAG

Example units%

StatusDEPRECATED

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.70

Consumer names

Coagulation Factor XI Activated, Blood

Part names

Coagulation factor XI activated activityCFrPtPPPQnCoagCoagulation factor XI activatedCatalytic FractionPoint 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.