E05.9 (Thyrotoxicosis, unspecified) is an umbrella ICD-10-CM medical diagnosis code in the Endocrine, nutritional and metabolic diseases chapter. It identifies cases of thyrotoxicosis, unspecified for clinical documentation, billing and epidemiological tracking.

ICD-10-CM · Category

E05.9 — Thyrotoxicosis, unspecified

Chapter E00-E89: Endocrine, nutritional and metabolic diseases

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Sub-codes under E05.9

E05.90Thyrotoxicosis, unsp without thyrotoxic crisis or stormE05.91Thyrotoxicosis, unspecified with thyrotoxic crisis or storm

Related diagnoses

E05.0Thyrotoxicosis with diffuse goiterE05.1Thyrotoxicosis with toxic single thyroid noduleE05.2Thyrotoxicosis with toxic multinodular goiterE05.3Thyrotoxicosis from ectopic thyroid tissueE05.4Thyrotoxicosis factitiaE05.8Other thyrotoxicosis

Common questions about E05.9 (Thyrotoxicosis, unspecified)

What does ICD-10 code E05.9 mean?
E05.9 is the ICD-10-CM 2025 code for Thyrotoxicosis, unspecified. ICD-10-CM is the medical coding system used by clinicians, hospitals and insurers worldwide to classify diseases and conditions in a standard way.
Is E05.9 a billable diagnosis code?
E05.9 is a category-level (umbrella) code rather than a billable specific code. For billing purposes, clinicians typically use a more specific sub-code under E05.9. Browse the sub-codes listed on this page.
Which ICD-10 chapter does E05.9 belong to?
E05.9 belongs to the chapter "Endocrine, nutritional and metabolic diseases" (codes E00-E89). ICD-10-CM organises codes into 22 chapters by body system or condition type, which helps clinicians navigate related diagnoses.
Where can I get plain-language information about Thyrotoxicosis, unspecified?
For a plain-language explanation of Thyrotoxicosis, unspecified, ask GoDavaii's Health AI - it explains medical conditions in 90+ languages, free, with no signup. Tap "Ask GoDavaii AI about Thyrotoxicosis, unspecified" above to get a personalised answer.

Source: ICD-10-CM 2025 (Centers for Medicare & Medicaid Services, public domain). Codes valid from October 1, 2024. CMS source ↗