Functional Neurological Disorder

Functional Neurological Disorder is indexed under Neurological & Neurodegenerative, Functional Neurological. Also known as FND, conversion disorder, psychogenic non-epileptic seizures.

US prevalence

~50 per 100,000; second most common reason for neurology outpatient visit Source: FND Society; AAN. This figure comes from a professional society, registry, or study rather than a federal source. Label: REPORTED.

ICD-10-CM codes

F44.4, F44.5, F44.6, F44.7

Typical onset

Any age; peak 30s-40s

Course

managed

Body systems

neurological

Sex differences

F:M ~2-3:1

Racial and ethnic differences

Limited data

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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