LOINCActiveBoth

LOINC Code 47285-2: Heparin cofactor II Ag Qn (PPP)

47285-2 is a LOINC code used to identify Heparin cofactor II Ag 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 Heparin cofactor II 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 Heparin cofactor II 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

What it does not mean

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

Key facts

  • Heparin cofactor II Ag [Units/volume] in Platelet poor plasma
  • Heparin cofactor II Ag
  • 2; Antigen; Antigens; Arbitrary concentration; COAGULATION; Cofact; Dermatan sulphate cofactor; HC; HCII; Hematology; Heme; Hep; Hepar; Heparin CF II; Heparn; Plas; Platelet poor plasma; Point in time; QNT; Quan; Quant; Quantitative; Random; Thrombin inhibitor II

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

Heparin cofactor II Ag Qn (PPP)Heparin cofactor II Ag [Units/volume] in Platelet poor plasmaHeparin CF II Ag PPP-aCncHeparin cofactor II AgCOAGHeparin Cofactor II antigen, BloodACnc

Frequently asked questions

Code details

Code47285-2
SystemLOINC
Display nameHeparin cofactor II Ag Qn (PPP)
DescriptionHeparin cofactor II Ag
Short nameHeparin CF II Ag PPP-aCnc
ComponentHeparin cofactor II Ag
PropertyACnc
TimingPt
System (specimen)PPP
ScaleQn
ClassCOAG
Example unitsarb U/mL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.19
Last changed2.70

Consumer names

Heparin Cofactor II antigen, Blood

Part names

Heparin cofactor II AgACncPtPPPQnArbitrary ConcentrationPoint in time (spot)Platelet poor plasma

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 47285-2 | HealthAssure