Complex Regional Pain Syndrome

Complex Regional Pain Syndrome is indexed under Neurological & Neurodegenerative, Pain Disorders. Also known as CRPS, reflex sympathetic dystrophy, causalgia.

US prevalence

~200,000; incidence 5-26 per 100,000 person-years Source: Pain Medicine literature. This figure comes from a professional society, registry, or study rather than a federal source. Label: REPORTED.

ICD-10-CM codes

G90.50, G90.51, G90.52

Typical onset

Any age; peak 40-60; often post-trauma or surgery

Course

progressive

Body systems

neurological, musculoskeletal, vascular

Sex differences

F:M ~3-4:1

Racial and ethnic differences

Limited data; likely underdiagnosed in minorities due to pain bias

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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