LOINC Code 77684-9: L. pneumophila 1 Ag IA.rapid Ql (U)

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 Legionella pneumophila 1 Ag. It is commonly used with the system or sample type Urine.

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.rapid

What it does not mean

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

Key facts

• Legionella pneumophila 1 Ag [Presence] in Urine by Rapid immunoassay
• Legionella pneumophila 1 Ag
• For patients with symptoms of pneumonia, this test allows for early diagnosis of Legionella pneumophila serogroup 1 infection by detecting a specific soluble antigen present in the urine of patients with Legionnaires Disease. This term was created for, but not limited in use to, the submitter's Alere BinaxNOW Legionella Urinary Antigen Card test kit, which is a immunochromatographic membrane assay. Once reagents and cards are at room temperature, the test results can be read in about 15 minutes.
• Antigen; Antigens; EIA; ELFA; ELISA; Enzyme immunoassay; i; IAA; ID; Infectious Disease; InfectiousDisease; L pneumo; L pneumo1; L pneumonphila; Legion; Legionela; Legionella pneumophila serogroup 1; MEIA; Microbiology; Ordinal; Philadelphia 1; Pneu; pneum; Pneumophilia; Point in time; PR; QL; Qual; Qualitative; Random; Screen; SUDS; UA; UR; Urn

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