Neuromyelitis Optica Spectrum Disorder

Neuromyelitis Optica Spectrum Disorder is indexed under Autoimmune & Inflammatory, Demyelinating Diseases. Also known as NMOSD, Devic disease, NMO.

US prevalence

~4,000-8,000 (~1-5 per 100,000) Source: Guthy-Jackson Foundation; NINDS. Cites federal and non-federal sources, and the record does not say which one gave this figure. Label: REPORTED.

ICD-10-CM codes

G36.0

Typical onset

Mean onset 40; range wide

Course

episodic

Body systems

neurological, ophthalmologic

Sex differences

F:M ~9:1

Racial and ethnic differences

More common in Black, Asian, and Hispanic populations than MS

What this page does not establish

These figures describe populations, not individuals, and none of them is a diagnosis or a treatment recommendation. Prevalence estimates are approximate and reflect published ranges. Disparity figures are reported patterns, not causes.

Taxonomy last reviewed 2026-05-19. Each figure on the interactive page carries its own source and retrieval date, which can be later than this review.

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