Hyperparathyroidism and other disorders of parathyroid gland E21

The ICD10 code for the diagnosis "Hyperparathyroidism and other disorders of parathyroid gland" is "E21". E21 is NOT a 'valid' or 'billable' ICD10 code. Please select a more specific diagnosis below.

  • E21 should not be used for reimbursement purposes. Please select a more specific diagnosis below.
  • The 2019 edition of ICD-10-CM E21 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of E21 - other international versions of ICD-10 E21 may differ.
Type 1 Excludes:
  • adult osteomalacia (M83.-)
  • ectopic hyperparathyroidism (E34.2)
  • familial hypocalciuric hypercalcemia (E83.52)
  • hungry bone syndrome (E83.81)
  • infantile and juvenile osteomalacia (E55.0)

Codes: = Billable

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.