Schizophrenia Spectrum Disorders

Schizophrenia Spectrum Disorders is indexed under Mental Health & Behavioral, Psychotic Disorders. Also known as schizophrenia, schizoaffective disorder.

US prevalence

Available U.S. studies estimate schizophrenia and related psychotic disorders at ~0.25-0.64%; precise prevalence is difficult to determine Source: NIMH — Schizophrenia statistics. Federal source. Label: VERIFIED.

ICD-10-CM codes

F20, F25

Typical onset

Men: late teens-early 20s; Women: late 20s-early 30s

Course

lifelong

Body systems

psychiatric

Sex differences

Roughly equal prevalence; earlier onset in men

Racial and ethnic differences

Overdiagnosed in Black Americans relative to clinical presentation; complex social determinants

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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