Thyrotoxicosis factitia
ICD-10 E05.4 is a billable code used to indicate a diagnosis of thyrotoxicosis factitia.
Thyrotoxicosis factitia is a condition characterized by the presence of excessive thyroid hormones in the body due to the ingestion of exogenous thyroid hormones, often for the purpose of weight loss or to self-treat perceived thyroid dysfunction. This condition can mimic primary hyperthyroidism, leading to symptoms such as weight loss, increased appetite, heat intolerance, palpitations, and anxiety. Patients may present with elevated levels of free thyroxine (T4) and triiodothyronine (T3) in serum thyroid function tests, while thyroid-stimulating hormone (TSH) levels are typically suppressed. The diagnosis is often made through a thorough clinical history, including medication use, and laboratory tests. It is crucial to differentiate thyrotoxicosis factitia from other forms of hyperthyroidism, such as Graves' disease or toxic nodular goiter, as the management and implications differ significantly. Treatment involves cessation of the exogenous hormone intake and monitoring of thyroid function tests to ensure normalization of hormone levels.
Detailed patient history, including medication use, and comprehensive thyroid function test results.
Patients presenting with symptoms of hyperthyroidism without a clear underlying cause.
Endocrinologists must ensure thorough documentation to differentiate between thyrotoxicosis factitia and other hyperthyroid conditions.
Complete patient history and symptom assessment, including any self-medication practices.
Patients with unexplained weight loss and anxiety who may have self-prescribed thyroid medications.
Primary care providers should be vigilant in asking about over-the-counter and alternative medications that may contain thyroid hormones.
Used to evaluate thyroid function in suspected cases of thyrotoxicosis.
Document the reason for the test and any relevant symptoms.
Endocrinologists may require additional tests to confirm the diagnosis.
The primary cause is the ingestion of exogenous thyroid hormones, often for weight loss or self-treatment of perceived thyroid issues.
