LOINCActiveBoth

LOINC Code 49865-9: Coagulation factor VIII activity actual/normal Chromogenic method (PPP) [Rel units/Vol]

49865-9 is a LOINC code used to identify Coagulation factor VIII activity actual/normal Chromogenic method (PPP) [Rel units/Vol] 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 activity actual/Normal. 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 activity actual/Normal. 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: Chromo

What it does not mean

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

Key facts

Coagulation factor VIII activity actual/normal in Platelet poor plasma by Chromogenic method
Coagulation factor VIII activity actual/Normal
Act/Nor; Activ; Actvty; AHF; AHG; Antihemophilic factor; Antihemophilic globulin; Chromogenic assay; Circulating anticoagulant; Coag; Control; ENZY; Enzymatic assay; F8; Fac; Fact; Fact VIII; Factor 8; Factor VIII clotting activity; FVIII; Hematology; Heme; Movements; Plas; Platelet poor plasma; Point in time; QNT; Quan; Quant; Quantitative; Random; RlACnc; 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 activity actual/normal Chromogenic method (PPP) [Rel units/Vol]Coagulation factor VIII activity actual/normal in Platelet poor plasma by Chromogenic methodFact VIII Act/Nor PPP ChroCoagulation factor VIII activity actual/NormalCOAGCoagulation Factor VIII Activity actual/normal, BloodRelACnc

Frequently asked questions

Code details

Code49865-9
SystemLOINC
Display nameCoagulation factor VIII activity actual/normal Chromogenic method (PPP) [Rel units/Vol]
DescriptionCoagulation factor VIII activity actual/Normal
Short nameFact VIII Act/Nor PPP Chro
ComponentCoagulation factor VIII activity actual/Normal
PropertyRelACnc
TimingPt
System (specimen)PPP
ScaleQn
MethodChromo
ClassCOAG
Example units%
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.22
Last changed2.73

Consumer names

Coagulation Factor VIII Activity actual/normal, Blood

Part names

Coagulation factor VIII activity actual/NormalRelACncPtPPPQnChromoRelative Arbitrary ConcentrationPoint in time (spot)Platelet poor plasmaChromogenic (Enzyme)

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.

LOINC Code 49865-9 | HealthAssure