Other specified hypoparathyroidism

This code signifies a form of hypoparathyroidism that does not fit into the categories of idiopathic, postsurgical, or pseudohypoparathyroidism. It represents a deficiency in parathyroid hormone (PTH) secretion leading to hypocalcemia, where the underlying cause is identified but is not one of the more common etiologies.

Use this code when documentation specifies a cause of hypoparathyroidism that is not congenital, acquired post-procedural, or a resistance to PTH. Examples include hypoparathyroidism due to magnesium deficiency, heavy metal toxicity, or infiltrative diseases affecting the parathyroid glands. Documentation should clearly state the specific, non-routine etiology.

• Do not use this code for idiopathic, postsurgical, or pseudohypoparathyroidism; these have their own specific codes.
• Always code the underlying cause of the hypoparathyroidism first, if known and clinically relevant.
• Ensure the medical record clearly identifies the specific "other" cause to support the use of this code.