LOINC Code 53707-6: CV2 IgG IB Ql (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 CV2 Ab.IgG. It is commonly used with the system or sample type 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
• Method: IB

What it does not mean

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

Key facts

• CV2 IgG Ab [Presence] in Cerebral spinal fluid by Immunoblot
• CV2 Ab.IgG
• CV2 IgG in cerebrospinal fluid (CFS) can be detected by western blot assays and is highly recommended for evaluating patients with subacute unexplained basal ganglionic disorders (chorea/Parkinsonism hemi-ballismus), cranial neuropathies (particularly loss of vision, smell or taste), myelopathies, and radiculoplexopathies. CV2-IgG is also a sensitive confirmatory marker for thymoma and lung carcinoma (SCLC-small cell lung carcinomas).
• ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Blt; Cerebral spinal fluid; Cerebrospinal Fl; Collapsin response mediator protein 5; Collapsin response mediator protein 5 Ab; Collapsin response mediator protein 5 Ab.IgG; CRMP5; CRMP-5; Immune blot; Immune globulin G; Immunobl; Immunoblot; Immunoglobulin G; Ordinal; Point in time; POP66; PR; QL; Qual; Qualitative; Random; RIBA; Screen; Serology; Spinal Fl; Spinal Fld; Spinal Flu; Spinal Fluid; ULIP; WB; WBLOT; West blot; West blt; Western blot

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