Other demyelinating diseases of central nervous system (G37) ICD-10-CM
The G37 code range covers other demyelinating diseases of central nervous system with 11 ICD-10-CM diagnosis codes. 9 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the G37 Range 11 codes · 9 billable
- G37 Other demyelinating diseases of central nervous systemNon-billable
- G37.0 Diffuse sclerosis of central nervous system
- G37.1 Central demyelination of corpus callosum
- G37.2 Central pontine myelinolysis
- G37.3 Acute transverse myelitis in demyelinating disease of central nervous system
- G37.4 Subacute necrotizing myelitis of central nervous system
- G37.5 Concentric sclerosis [Balo] of central nervous system
- G37.8 Other specified demyelinating diseases of central nervous systemNon-billable
- G37.81 Myelin oligodendrocyte glycoprotein antibody disease
- G37.89 Other specified demyelinating diseases of central nervous system
- G37.9 Demyelinating disease of central nervous system, unspecified
About the G37 Code Range
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.
Questions About This Page
How many billable codes are in the G37 range?
Of the 11 codes in this range, 9 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the G37 range classify?
The range classifies other demyelinating diseases of central nervous system. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
