Hypoparathyroidism

This code represents a condition characterized by insufficient production of parathyroid hormone (PTH) by the parathyroid glands. This deficiency leads to hypocalcemia (low blood calcium) and hyperphosphatemia (high blood phosphate). The condition can be acute or chronic, and its severity varies.

Use this code when documentation clearly indicates a diagnosis of hypoparathyroidism, regardless of its etiology (e.g., idiopathic, post-surgical, autoimmune). This code is appropriate for both primary diagnosis and secondary diagnosis when the hypoparathyroidism is a comorbidity or complication.

• Differentiate from pseudohypoparathyroidism, where PTH levels are normal or elevated but target organs are resistant.
• Specify the underlying cause if known and documented, using an additional code for the etiology (e.g., surgical removal of parathyroid glands).
• Ensure documentation supports the diagnosis, including laboratory findings of low calcium and high phosphate, and PTH levels.