LOINC Code 6421-2: HBV rRNA Probe Ql (Specimen)

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 B virus rRNA. It is commonly used with the system or sample type XXX.

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: Probe

What it does not mean

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

Key facts

• Hepatitis B virus rRNA [Presence] in Specimen by Probe
• Hepatitis B virus rRNA
• DNA NUCLEIC ACID PROBE; DNA probe; HBV; Hep; Hep B; Hepatis; Hepatit; Hepatology; HepB; ID; Infectious Disease; InfectiousDisease; Liver; Microbiology; Misc; Miscellaneous; Ordinal; Other; Point in time; PR; QL; Qual; Qualitative; Random; ribosomal RNA; Screen; Spec; To be specified in another part of the message; Unspecified

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