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E21

Hyperparathyroidism and other disorders of parathyroid gland

• adult osteomalacia (M83.-)
• ectopic hyperparathyroidism (E34.2)
• familial hypocalciuric hypercalcemia (E83.52)
• hungry bone syndrome (E83.81)
• infantile and juvenile osteomalacia (E55.0)

E21.0

Primary hyperparathyroidism

• Hyperplasia of parathyroid
• Osteitis fibrosa cystica generalisata [von Recklinghausen's disease of bone]

E21.1

Secondary hyperparathyroidism, not elsewhere classified

• secondary hyperparathyroidism of renal origin (N25.81)

E21.2

Other hyperparathyroidism

• familial hypocalciuric hypercalcemia (E83.52)

• Tertiary hyperparathyroidism

E21.3

Hyperparathyroidism, unspecified

E21.4

Other specified disorders of parathyroid gland

E21.5

Disorder of parathyroid gland, unspecified