LOINC Code 79189-7: HCV core Ag IA Ql

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 Hepatitis C virus core Ag. It is commonly used with the system or sample type Ser/Plas.

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: IA

What it does not mean

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

Key facts

• Hepatitis C virus core Ag [Presence] in Serum or Plasma by Immunoassay
• Hepatitis C virus core Ag
• HCV Ag assays are used as an aid in the diagnosis of suspected Hepatitis viral (HCV) infection and to monitor the status of infected individuals, i.e., whether the patient's infection has resolved or the patient has become a chronic carrier of the virus. This term was created for, but not limited in use to, the submitter's Architect System, HCV Ag test kit. In the USA the CDC testing algorithm does not include the HCV core antigen.
• Antigen; Antigens; EIA; ELFA; ELISA; Enzyme immunoassay; HCV; HCV core; HCV core Ag; Hep; Hep C; Hepatis; Hepatit; Hepatology; IAA; ID; Infectious Disease; InfectiousDisease; Liver; MEIA; Microbiology; Ordinal; Pl; Plasma; Plsm; Point in time; PR; QL; Qual; Qualitative; Random; Screen; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; SUDS

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