Psoriatic Arthritis
Psoriatic Arthritis is indexed under Musculoskeletal & Connective Tissue, Spondyloarthritis. Also known as PsA.
- US prevalence
- ~24 per 10,000 people Source: MedlinePlus Genetics (NLM), Psoriatic arthritis, frequency section last updated August 1, 2014. This figure comes from a professional society, registry, or study rather than a federal source. Label: REPORTED.
- ICD-10-CM codes
- L40.5, M07
- Typical onset
- 30-50 years; usually within 10 years of skin psoriasis
- Course
- progressive
- Body systems
- musculoskeletal, dermatologic
- Sex differences
- Roughly equal
- Racial and ethnic differences
- Limited data; follows psoriasis patterns (more common in white populations)
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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