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 3231-8: Coagulation factor XII activity Coag Qn (PPP)

Name: LOINC Code 3231-8: Coagulation factor XII activity Coag Qn (PPP)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

3231-8 is a LOINC code used to identify Coagulation factor XII activity 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 XII activity. 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 XII 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: 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 XII activity [Units/volume] in Platelet poor plasma by Coagulation assay
Coagulation factor XII activity
Activ; Actvty; Arbitrary concentration; Clot; Clottable; Coag; Coagulation assay; Fac; Fact; Fact XII; Factor 12; FXII; Hageman factor; Hematology; Heme; Movements; Plas; Platelet poor plasma; Point in time; 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 XII activity Coag Qn (PPP) (3231-8)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Coagulation factor XII activity Coag Qn (PPP)Coagulation factor XII activity [Units/volume] in Platelet poor plasma by Coagulation assayFact XII PPP-aCncCoagulation factor XII activityCOAGCoagulation Factor XII Activity, BloodACnc

Frequently asked questions

Code details

Code3231-8

SystemLOINC

Display nameCoagulation factor XII activity Coag Qn (PPP)

DescriptionCoagulation factor XII activity

Short nameFact XII PPP-aCnc

ComponentCoagulation factor XII activity

PropertyACnc

TimingPt

System (specimen)PPP

ScaleQn

MethodCoag

ClassCOAG

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.82

Consumer names

Coagulation Factor XII Activity, Blood

Part names

Coagulation factor XII activityACncPtPPPQnCoagArbitrary 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.