Subclinical iodine-deficiency hypothyroidism (E02)

The ICD-10 code E02 is used to identify subclinical iodine-deficiency hypothyroidism, a mild form of hypothyroidism caused by inadequate iodine. This condition is often detected through laboratory tests before clear symptoms develop.

Subclinical iodine-deficiency hypothyroidism occurs when the thyroid gland function is slightly impaired due to a lack of iodine, an essential mineral for thyroid hormone production. The code E02 also covers related terms like iodine hypothyroidism and subclinical hypothyroidism, which refer to the same biochemical state with minimal or no clinical symptoms. It differs from overt hypothyroidism by its subtle presentation but requires monitoring to prevent progression. Notably, synonyms such as myxedema coma due to subclinical hypothyroidism highlight rare severe consequences if untreated. Medical coders and clinicians use the ICD-10 code for subclinical iodine-deficiency hypothyroidism to document this early thyroid disorder linked to iodine insufficiency, facilitating appropriate evaluation and treatment decisions.