LOINC Code 50390-4: Coagulation factor II circulating inhibitor Ql (PPP)

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 II circulating inhibitor. 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

• Coagulation factor II circulating inhibitor [Presence] in Platelet poor plasma
• Coagulation factor II circulating inhibitor
• PT circulating inhibitor is part of the PT mixing study. When addition of normal plasma fails to correct the clotting time into the normal range, the cause of the abnormal test is likely an inhibitor rather than a clotting factor deficiency.
• 2; Circ; Coag; Fac; Fact; Fact II circ inhib; Factor 2; FII; Hematology; Heme; Inhib; Inhibit; Ordinal; Plas; Platelet poor plasma; Point in time; PR; Prothrombin inhibitor; PT inhibitor; QL; Qual; Qualitative; Random; Screen

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

Frequently asked questions