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 3213-6: Coagulation factor VIII Ag IA Qn (PPP)

Name: LOINC Code 3213-6: Coagulation factor VIII Ag IA Qn (PPP)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:18.899Z

3213-6 is a LOINC code used to identify Coagulation factor VIII Ag IA 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 VIII Ag. 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 VIII Ag. 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: IA

What it does not mean

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

Key facts

Coagulation factor VIII Ag [Units/volume] in Platelet poor plasma by Immunoassay

Coagulation factor VIII Ag

AHF; AHG; Antigen; Antigens; Antihemophilic factor; Antihemophilic globulin; Arbitrary concentration; Circulating anticoagulant; Coag; EIA; ELFA; ELISA; Enzyme immunoassay; F8; Fac; Fact; Fact VIII; Factor 8; Factor VIII clotting activity; FVIII; Hematology; Heme; IAA; MEIA; Plas; Platelet poor plasma; Point in time; QNT; Quan; Quant; Quantitative; Random; SUDS; Thrombocyte cofactor A; VIIIC

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 VIII Ag IA Qn (PPP)Coagulation factor VIII Ag [Units/volume] in Platelet poor plasma by ImmunoassayFact VIII Ag PPP IA-aCncCoagulation factor VIII AgCOAGCoagulation Factor VIII antigen, BloodACnc

Frequently asked questions

Code details

Code3213-6

SystemLOINC

Display nameCoagulation factor VIII Ag IA Qn (PPP)

DescriptionCoagulation factor VIII Ag

Short nameFact VIII Ag PPP IA-aCnc

ComponentCoagulation factor VIII Ag

PropertyACnc

TimingPt

System (specimen)PPP

ScaleQn

MethodIA

ClassCOAG

Example unitsarb U/mL

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.73

Consumer names

Coagulation Factor VIII antigen, Blood

Part names

Coagulation factor VIII AgACncPtPPPQnIAArbitrary ConcentrationPoint in time (spot)Platelet poor plasmaImmunoassay

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.