E21.5

Approximate Synonyms

• Disorder of parathyroid gland

• Parathyroid disorder

Clinical Information

• Deviation from or interruption of the normal structure or function of the parathyroid gland.

• Most people have four pea-sized glands, called parathyroid glands, on the thyroid gland in the neck. Though their names are similar, the thyroid and parathyroid glands are completely different. The parathyroid glands make parathyroid hormone pth), which helps your body keep the right balance of calcium and phosphorous. If your parathyroid glands make too much or too little hormone, it disrupts this balance. If they secrete extra pth, you have hyperparathyroidism, and your blood calcium rises. In many cases, a benign tumor on a parathyroid gland makes it overactive. Or, the extra hormones can come from enlarged parathyroid glands. Very rarely, the cause is cancer.if you do not have enough pth, you have hypoparathyroidism. Your blood will have too little calcium and too much phosphorous. Causes include injury to the glands, endocrine disorders, or genetic conditions. Treatment is aimed at restoring the balance of calcium and phosphorous.

• Pathological processes of the parathyroid glands. They usually manifest as hypersecretion or hyposecretion of parathyroid hormone that regulates the balance of calcium; phosphorus; and magnesium in the body.

Details

• E21.5 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM E21.5 became effective on October 1, 2022.

• This is the American ICD-10-CM version of E21.5 – other international versions of ICD-10 E21.5 may differ.