Code 86362 describes a test to identify an antibody to myelin oligodendrocyte glycoprotein (MOG–IgG1), typically in a serum specimen. The lab method for this test is cell–based immunofluorescence assay (CBA). Clinicians may order this test following a negative aquaporin–4 antibody test to help distinguish neuromyelitis optica (NMO) from a similar condition characterized by the presence of MOG–IgG1, which is often called MOG–encephalomyelitis (MOG–EM).
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