| E20 | Hypoparathyroidism |
| E20.0 | Idiopathic hypoparathyroidism |
| E20.1 | Pseudohypoparathyroidism |
| E20.8 | Other hypoparathyroidism |
| E20.9 | Hypoparathyroidism, unspecified |
| E21 | Hyperparathyroidism and other disorders of parathyroid gland |
| 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 |