Other demyelinating diseases of central nervous system (G37)

The ICD-10 code G37 series is used to classify a group of other demyelinating diseases of the central nervous system, distinct from more common types like multiple sclerosis. These codes help specify various rare and complex disorders affecting the myelin sheath that insulates nerve fibers in the brain and spinal cord.

This section includes conditions like G37.0 for diffuse sclerosis (also known as Schilder's disease) and G37.1 for central demyelination of the corpus callosum or Marchiafava-Bignami disease. G37.2 covers central pontine myelinolysis, a disorder of rapid myelin loss in the brainstem. G37.3 is used for acute transverse myelitis, including variants like idiopathic transverse myelitis and herpes zoster myelitis. Other notable codes include G37.4 for subacute necrotizing myelitis and G37.5 for Balo concentric sclerosis. More specific entities, like myelin oligodendrocyte glycoprotein antibody disease (G37.81), are also listed. The G37.8 and G37.89 codes address other less common or specified demyelinating diseases, some linked to systemic conditions such as Behçet disease or Lyme borreliosis. Finally, G37.9 is designated for unspecified demyelinating diseases when a precise diagnosis is not made.