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.

LOINCActiveBoth

LOINC Code 3224-3: Coagulation factor XI inhibitor Coag Qn (PPP)

Name: LOINC Code 3224-3: Coagulation factor XI inhibitor Coag Qn (PPP)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

3224-3 is a LOINC code used to identify Coagulation factor XI inhibitor Coag Qn (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 Coagulation factor XI inhibitor. It is commonly used with the system or sample type PPP.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 inhibitor. 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: Both
Method: Coag

What it does not mean

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

Key facts

Coagulation factor XI inhibitor [Units/volume] in Platelet poor plasma by Coagulation assay
Coagulation factor XI inhibitor
Antihemophilic factor C; Arbitrary concentration; Clot; Clottable; Coag; Coagulation assay; Fac; Fact; Fact XI; Fact XI Inhib; Factor 11; FXI; Hematology; Heme; Inhib; Inhibit; 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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Coagulation factor XI inhibitor Coag Qn (PPP) (3224-3)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Coagulation factor XI inhibitor Coag Qn (PPP)Coagulation factor XI inhibitor [Units/volume] in Platelet poor plasma by Coagulation assayFact XI Inhib PPP-aCncCoagulation factor XI inhibitorCOAGCoagulation Factor XI Inhibitor, BloodACnc

Frequently asked questions

Code details

Code3224-3

SystemLOINC

Display nameCoagulation factor XI inhibitor Coag Qn (PPP)

DescriptionCoagulation factor XI inhibitor

Short nameFact XI Inhib PPP-aCnc

ComponentCoagulation factor XI inhibitor

PropertyACnc

TimingPt

System (specimen)PPP

ScaleQn

MethodCoag

ClassCOAG

Example unitsBethesda Units

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.73

Consumer names

Coagulation Factor XI Inhibitor, Blood

Part names

Coagulation factor XI inhibitorACncPtPPPQnCoagArbitrary ConcentrationPoint 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.