ICD-10 Code E05.2 – Thyrotoxicosis with toxic multinodular goiter (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E05.2 – Thyrotoxicosis with toxic multinodular goiter
What it is
This code identifies thyrotoxicosis caused by a multinodular goiter that produces excess thyroid hormone. Use it when documentation links the hyperthyroid state to a toxic multinodular gland.
Clinical signs
Clinical features vary; refer to documentation. Commonly, you may see signs of hyperthyroidism with a nodular enlarged thyroid, and imaging or exam may describe multiple functioning nodules.
When to use this code
Use E05.2 when the provider documents thyrotoxicosis, hyperthyroidism, or thyrotoxic state due to toxic multinodular goiter. It also fits when the record clearly states multinodular toxic goiter as the cause. Check documentation if the cause of thyrotoxicosis is not specified.
Do not use for
Do not use this code for Graves’ disease, thyroiditis, or nontoxic multinodular goiter. If the record does not confirm a toxic multinodular cause, check documentation.
Coding tip
Assign E05.2 only when the multinodular goiter is documented as toxic or the source of thyrotoxicosis.