Crohn Disease

Crohn Disease is indexed under Gastrointestinal, Inflammatory Bowel Disease. Also known as Crohn's disease, regional enteritis.

US prevalence

~1.26 million U.S. adults age 18+ (0.5%) had ever been diagnosed with Crohn's disease in 2023-2024 Source: NCHS Health E-Stat 122 — Inflammatory Bowel Disease Among Adults, 2023-2024. Federal source. Label: VERIFIED.

ICD-10-CM codes

K50, K50.9

Typical onset

Bimodal: 15-35 years and 55-70 years

Course

episodic

Body systems

gastrointestinal, musculoskeletal, dermatologic

Sex differences

Slightly more common in women

Racial and ethnic differences

Historically higher in white and Ashkenazi Jewish populations; increasing in Black and Hispanic 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.

Browse all indexed conditions · Source registry · Methodology · Known limitations