G37.81 Myelin oligodendrocyte glycoprotein antibody disease

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

Applicable to

• MOG antibody disease

Code also

• associated manifestations, if known, such as:
• noninfectious acute disseminated encephalomyelitis (G04.81)
• neuromyelitis optica (G36.0)

Risk adjustment (HCC)

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

MS-DRG index

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

Diagnosis Index entries for G37.81

• Disease, diseased › MOG antibody
• Disease, diseased › myelin oligodendrocyte glycoprotein antibody
• MOGAD (myelin oligodendrocyte glycoprotein antibody disease)

Nearby codes

• 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 system
• G37.81 Myelin oligodendrocyte glycoprotein antibody disease (this code)
• G37.89 Other specified demyelinating diseases of central nervous system
• G37.9 Demyelinating disease of central nervous system, unspecified