Hypoparathyroidism due to impaired PTH secretion, unsp

This diagnosis code signifies a condition where the parathyroid glands fail to produce sufficient parathyroid hormone (PTH), leading to hypocalcemia. The underlying cause of this impaired secretion is not specified, distinguishing it from other forms of hypoparathyroidism with known etiologies.

Use this code when documentation confirms a diagnosis of hypoparathyroidism due to insufficient PTH secretion, but the specific cause (e.g., autoimmune, genetic, post-surgical) is not identified or documented. This code is appropriate when the provider explicitly states "impaired parathyroid hormone secretion" without further elaboration on the etiology.

• Ensure the documentation clearly states "impaired parathyroid hormone secretion" and not a different mechanism of hypoparathyroidism.
• Avoid using this code if a more specific cause of hypoparathyroidism (e.g., post-surgical, autoimmune) is documented; instead, use the appropriate subcategory code.
• This code is for the unspecified type of hypoparathyroidism due to impaired secretion; if the cause is known, a more specific code within E20.xx should be selected.