Primary Hyperparathyroidism

Primary Hyperparathyroidism is indexed under Metabolic & Endocrine, Parathyroid/Calcium Disorders. Also known as PHPT, parathyroid adenoma.

US prevalence

~1 in 500-1,000 (~100,000 new cases/year) Source: AACE; Endocrine Society. This figure comes from a professional society, registry, or study rather than a federal source. Label: REPORTED.

ICD-10-CM codes

E21.0

Typical onset

Primarily >50 years; postmenopausal women most common

Course

managed

Body systems

endocrine, renal, musculoskeletal

Sex differences

F:M ~3:1

Racial and ethnic differences

Higher in Black Americans

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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