LOINC Code 18345-9: Protein S Ag/Coagulation factor VII Ag Coag (PPP) [Mass ratio]

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 Protein S Ag/Coagulation factor VII 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
• Method: Coag

What it does not mean

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

Key facts

• Protein S Ag/Coagulation factor VII Ag [Mass Ratio] in Platelet poor plasma by Coagulation assay
• Protein S Ag/Coagulation factor VII Ag
• Antigen; Antigens; Clot; Clottable; Coag; Coagulation assay; F7; Fac; Fact; Fact VII; Factor 7; FVII; Hematology; Heme; Mass concentration ratio; Mass ratio; MCRto; MNSs Blood Group System; Plas; Platelet poor plasma; Point in time; PR; Proconvertin; Prot; Prot S; PS; QNT; Quan; Quant; Quantitative; Random; S prime; Serum prothrombin conversion accelerator; SPCA; Tilt tube

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