Aplastic Anemia

Aplastic Anemia is indexed under Hematologic, Bone Marrow Failure. Also known as AA.

US prevalence

~2-3 per million per year; prevalence ~several thousand Source: AAMDSIF; ASH. This figure comes from a professional society, registry, or study rather than a federal source. Label: REPORTED.

ICD-10-CM codes

D61.9, D61.1

Typical onset

Bimodal: 10-25 and >60

Course

managed

Body systems

hematologic

Sex differences

Roughly equal

Racial and ethnic differences

2-3x more common in East Asian 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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