E21 — ICD-10-CM Diagnosis Codes
- E21 Hyperparathyroidism and other disorders of parathyroid gland
- E21.0 Primary hyperparathyroidism billable
- E21.1 Secondary hyperparathyroidism, not elsewhere classified billable
- E21.2 Other hyperparathyroidism billable
- E21.3 Hyperparathyroidism, unspecified billable
- E21.4 Other specified disorders of parathyroid gland billable
- E21.5 Disorder of parathyroid gland, unspecified billable