G36.0 Neuromyelitis optica [Devic]

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

Applicable to

• Demyelination in optic neuritis

Excludes1 (never code together)

• optic neuritis NOS (H46)

Applies from G36 Other acute disseminated demyelination

Excludes1 (never code together)

• postinfectious encephalitis and encephalomyelitis NOS (G04.01)

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)

• 341.0 Neuromyelitis optica

Code annotations containing back-references to G36.0

Back-references to G36.0

• Type 1 Excludes: G37.3 Acute transverse myelitis in demyelinating disease of central nervous system ("neuromyelitis optica [Devic] (G36.0)")
• Code Also: G37.81 Myelin oligodendrocyte glycoprotein antibody disease ("neuromyelitis optica (G36.0)")
• Type 2 Excludes: H46 Optic neuritis ("neuromyelitis optica [Devic] (G36.0)")

Diagnosis Index entries for G36.0

• Demyelination, demyelinization › in optic neuritis
• Devic's disease
• Disease, diseased › Devic's
• Myelitis (acute) (ascending) (childhood) (chronic) (descending) (diffuse) (disseminated) (idiopathic) (pressure) (progressive) (spinal cord) (subacute) › optic neuritis in
• Neuritis (rheumatoid) › optic (nerve) (hereditary) (sympathetic) › with demyelination
• Neuritis (rheumatoid) › optic (nerve) (hereditary) (sympathetic) › in myelitis
• Neuroencephalomyelopathy, optic
• Neuromyelitis › optica
• Ophthalmoneuromyelitis

Nearby codes

• G36 Other acute disseminated demyelination
• G36.0 Neuromyelitis optica [Devic] (this code)
• G36.1 Acute and subacute hemorrhagic leukoencephalitis [Hurst]
• G36.8 Other specified acute disseminated demyelination
• G36.9 Acute disseminated demyelination, unspecified