LOINCActiveObservation

LOINC Code 66483-9: Heparin unfractionated Qn (PPP)

66483-9 is a LOINC code used to identify Heparin unfractionated 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.unfractionated. 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 Heparin.unfractionated. 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: Observation

What it does not mean

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

Key facts

  • Heparin unfractionated [Units/volume] in Platelet poor plasma
  • Heparin.unfractionated
  • Arbitrary concentration; COAGULATION; Hematology; Heme; Hep; Hepar; Heparn; Plas; Platelet poor plasma; Point in time; QNT; Quan; Quant; Quantitative; Random; UFH

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 unfractionated Qn (PPP)Heparin unfractionated [Units/volume] in Platelet poor plasmaUFH PPP-aCncHeparin.unfractionatedCOAGHeparin unfractionated, BloodACnc

Frequently asked questions

Code details

Code66483-9
SystemLOINC
Display nameHeparin unfractionated Qn (PPP)
DescriptionHeparin.unfractionated
Short nameUFH PPP-aCnc
ComponentHeparin.unfractionated
PropertyACnc
TimingPt
System (specimen)PPP
ScaleQn
ClassCOAG
Example unitsarb U/mL
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.38
Last changed2.73

Consumer names

Heparin unfractionated, Blood

Part names

Heparin.unfractionatedACncPtPPPQnHeparin unfractionatedArbitrary 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 66483-9 | HealthAssure