LOINC Code 92811-9: B. afzelii+burgdorferi+garinii IgG index IA Qn (S+CSF)

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 Borrelia afzelii+burgdorferi+garinii Ab.IgG index. It is commonly used with the system or sample type Ser+CSF.

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
• Method: IA

What it does not mean

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

Key facts

• Borrelia afzelii+burgdorferi+garinii IgG Ab index [Units/volume] in Serum and CSF by Immunoassay
• Borrelia afzelii+burgdorferi+garinii Ab.IgG index
• The Borrelia IgG index is calculated using serum and CSF values for anti-Borrelia IgG, total IgG, and albumin. The anti-Borrelia IgG levels are normalized to total IgG and albumin for both CSF and serum, and these values are used to determine the CSF to serum antibody index ratio.
• ABS; Aby; AI; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; B afz+burg+gari; B afzelii; Both serum and cerebrospinal fluid; Cerebral spinal fluid; Cerebrospinal Fl; EIA; ELFA; ELISA; Enzyme immunoassay; IAA; Immune globulin G; Immunoglobulin G; MEIA; Microbiology; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid; 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