G37.5 Concentric sclerosis [Balo] of central nervous system

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Risk adjustment (HCC)

• CMS-HCC V28: HCC 198 — Multiple Sclerosis
• CMS-HCC V22: HCC 77 — Multiple Sclerosis
• RxHCC V08: HCC 159 — Multiple Sclerosis
• ESRD V24: HCC 77

MS-DRG index

Defines the logic of DRG(s) 058-060 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 341.1 Schilder's disease (approximate)

Diagnosis Index entries for G37.5

• Balo's disease (concentric sclerosis)
• Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) › periaxialis (concentrica) (diffuse)
• Greenfield's disease › meaning › concentric sclerosis (encephalitis periaxialis concentrica)
• Sclerosis, sclerotic › concentric (Balo)

Nearby codes

• 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 (this code)
• G37.8 Other specified demyelinating diseases of central nervous system
• 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