LOINC Code 105193-7: T. pallidum IgG index 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 Treponema pallidum 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: Both

What it does not mean

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

Key facts

• Treponema pallidum IgG Ab index [Units/volume] in Serum and CSF
• Treponema pallidum Ab.IgG Index
• ABS; Aby; AI; Antby; Anti; Antibodies; Antibody; Arbitrary concentration; Autoantibodies; Autoantibody; Both serum and cerebrospinal fluid; Cerebral spinal fluid; Cerebrospinal Fl; Immune globulin G; Immunoglobulin G; Microbiology; Point in time; QNT; Quan; Quant; Quantitative; Random; Serum; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid; SR; Syphilis; T palldm; T pallidum; T pallidum Ab.IgG Index; Treponemal

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