ICD-10-CM Codes 2026 (USA)

• E21.1	Secondary hyperparathyroidism, not elsewhere classified

• E21.0	Primary hyperparathyroidism
  E21.1	Secondary hyperparathyroidism, not elsewhere classified
  E21.2	Other hyperparathyroidism
  E21.3	Hyperparathyroidism, unspecified
  E21.4	Other specified disorders of parathyroid gland
  E21.5	Disorder of parathyroid gland, unspecified

Created by Peter Blahut, MD