| E20 | Hypoparathyroidism | NON-BILLABLE CODE |
| E20.0 | Idiopathic hypoparathyroidism | BILLABLE CODE |
| E20.1 | Pseudohypoparathyroidism | BILLABLE CODE |
| E20.8 | Other hypoparathyroidism | NON-BILLABLE CODE |
| E20.81 | Hypoparathyroidism due to impaired parathyroid hormone secretion | NON-BILLABLE CODE |
| E20.810 | Autosomal dominant hypocalcemia | BILLABLE CODE |
| E20.811 | Secondary hypoparathyroidism in diseases classified elsewhere | BILLABLE CODE |
| E20.812 | Autoimmune hypoparathyroidism | BILLABLE CODE |
| E20.818 | Other specified hypoparathyroidism due to impaired parathyroid hormone secretion | BILLABLE CODE |
| E20.819 | Hypoparathyroidism due to impaired parathyroid hormone secretion, unspecified | BILLABLE CODE |
| E20.89 | Other specified hypoparathyroidism | BILLABLE CODE |
