Subclinical iodine-deficiency hypothyroidism
Chapter 4:Endocrine, nutritional and metabolic diseases
ICD-10 E02 is a billable code used to indicate a diagnosis of subclinical iodine-deficiency hypothyroidism.
Subclinical iodine-deficiency hypothyroidism is a condition characterized by elevated thyroid-stimulating hormone (TSH) levels with normal free thyroxine (FT4) levels, indicating an early stage of hypothyroidism. This condition arises due to insufficient iodine intake, which is essential for the synthesis of thyroid hormones. In iodine-deficient populations, the thyroid gland may struggle to produce adequate amounts of hormones, leading to compensatory increases in TSH. Patients may be asymptomatic or exhibit mild symptoms such as fatigue, weight gain, or cold intolerance. Diagnosis typically involves thyroid function tests, including serum TSH and FT4 levels. Management may include iodine supplementation and monitoring of thyroid function. It is crucial to identify and treat this condition early to prevent progression to overt hypothyroidism, which can have significant health implications, including cardiovascular issues and impaired cognitive function. Regular screening in at-risk populations, such as pregnant women and those living in iodine-deficient areas, is recommended to ensure timely intervention.
Thorough documentation of thyroid function tests, patient symptoms, and treatment plans.
Patients presenting with fatigue, weight gain, or cold intolerance with elevated TSH levels.
Endocrinologists should ensure that iodine intake is assessed and documented, especially in populations at risk.
Routine screening results, patient history, and any referrals to specialists.
Routine check-ups revealing abnormal thyroid function tests.
Primary care providers should be aware of the importance of iodine in diet and consider supplementation when necessary.
Used to confirm elevated TSH levels in suspected hypothyroidism.
Document the reason for the test and the results.
Endocrinologists may require additional tests to assess thyroid function comprehensively.
It is an early indicator of thyroid dysfunction due to iodine deficiency, which can lead to more severe hypothyroidism if not addressed. Early detection allows for timely intervention.
