LOINCActiveBoth

LOINC Code 4668-0: Plasminogen Ag (PPP) [Mass/Vol]

4668-0 is a LOINC code used to identify Plasminogen Ag (PPP) [Mass/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 Plasminogen Ag. 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 Plasminogen 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

  • Plasminogen Ag [Mass/volume] in Platelet poor plasma
  • Plasminogen Ag
  • Antigen; Antigens; COAGULATION; Hematology; Heme; Level; Mass concentration; Plas; Platelet poor plasma; PLG; PLGN; Point in time; Profibrinolysin; QNT; Quan; Quant; Quantitative; Random

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

Plasminogen Ag (PPP) [Mass/Vol]Plasminogen Ag [Mass/volume] in Platelet poor plasmaPLG Ag PPP-mCncPlasminogen AgCOAGPlasminogen antigen, BloodMCnc

Frequently asked questions

Code details

Code4668-0
SystemLOINC
Display namePlasminogen Ag (PPP) [Mass/Vol]
DescriptionPlasminogen Ag
Short namePLG Ag PPP-mCnc
ComponentPlasminogen Ag
PropertyMCnc
TimingPt
System (specimen)PPP
ScaleQn
ClassCOAG
Example unitsng/dL
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0
Last changed2.73

Consumer names

Plasminogen antigen, Blood

Part names

Plasminogen AgMCncPtPPPQnMass 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 4668-0 | HealthAssure