E05.3
Non-billableThyrotoxicosis from ectopic thyroid tissue
E05.3 is the ICD-10-CM code for Thyrotoxicosis from ectopic thyroid tissue. It is a non-billable category code — use a more specific child code such as E05.30 for billing.
E00-E89 Endocrine, nutritional and metabolic diseases
What this means — in plain language
MedlinePlus · NIHWhat is hyperthyroidism? Hyperthyroidism, or overactive thyroid, happens when your thyroid gland makes more thyroid hormones than your body needs. Your thyroid is a small, butterfly-shaped gland in the front of your neck. It makes hormones that control the way the body uses energy. These hormones affect nearly every organ in your body and control many of your body's most important functions. For example, they affect…
Read more about Hyperthyroidism at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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