Mastocytosis

Mastocytosis is indexed under Hematologic, Mast Cell Disorders. Also known as systemic mastocytosis, cutaneous mastocytosis.

US prevalence

~1 per 10,000 (exact prevalence uncertain) Source: TMS; ASH. This figure comes from a professional society, registry, or study rather than a federal source. Label: REPORTED.

ICD-10-CM codes

D47.02, Q82.2

Typical onset

Cutaneous: childhood; Systemic: adults 30-50

Course

managed

Body systems

hematologic, dermatologic, gastrointestinal

Sex differences

Roughly equal

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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