ICD-10 Code E21 – Hyperparathyroidism and other disorders of parathyroid gland (2026): Diagnosis, Symptoms & Billing Guide
The ICD-10 code for Hyperparathyroidism and other disorders of parathyroid gland is E21.2026 ICD-10-CM Diagnosis Code E21 – Hyperparathyroidism and other disorders of parathyroid gland Related ICD-10 Codes More specific subcodes: E21.0 – Primary hyperparathyroidism, E21.1 – Secondary hyperparathyroidism, not elsewhere classified, E21.2 – Other hyperparathyroidism, E21.3 – Hyperparathyroidism, unspecified, E21.4 – Other specified disorders…