Other thyrotoxicosis without thyrotoxic crisis or storm

This code represents a condition where the thyroid gland produces an excess of thyroid hormones, leading to symptoms of hyperthyroidism, but without the severe, life-threatening exacerbation known as a thyrotoxic crisis or storm. It encompasses various forms of hyperthyroidism that do not fit the criteria for Graves' disease, toxic nodular goiter, or other specified types.

Use this code for patients presenting with signs and symptoms of hyperthyroidism (e.g., weight loss, tachycardia, heat intolerance, tremor) where the underlying cause is not Graves' disease, a toxic nodule, or drug-induced, and there is no evidence of a thyrotoxic storm. Documentation should clearly indicate hyperthyroidism and rule out a crisis, often supported by thyroid function tests (elevated T3/T4, suppressed TSH) and clinical assessment.

• Ensure documentation explicitly states the absence of a thyrotoxic crisis or storm; otherwise, a more specific code for crisis should be used.
• Differentiate from Graves' disease (E05.0-) or toxic nodular goiter (E05.2-) when the specific etiology is known.
• This code is often used for transient hyperthyroidism, subacute thyroiditis (hyperthyroid phase), or other less common causes of thyrotoxicosis not otherwise specified.