E05
Thyrotoxicosis [hyperthyroidism]
Non-billable headerNot valid on its own. Use one of the more specific codes under it.
E05 is a non-billable ICD-10-CM code category for thyrotoxicosis [hyperthyroidism]. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are E05.0 Thyrotoxicosis with diffuse goiter, E05.1 Thyrotoxicosis with toxic single thyroid nodule, E05.2 Thyrotoxicosis with toxic multinodular goiter, E05.3 Thyrotoxicosis from ectopic thyroid tissue and 3 more. Its coding notes include 3 Excludes1 entries.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Notes
Also from chapter/block level (1 note)
Inherited from Chapter 4 Endocrine, nutritional and metabolic diseases
- All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.
More specific codes under E05 7
- E05.0Thyrotoxicosis with diffuse goiterHeader
- E05.1Thyrotoxicosis with toxic single thyroid noduleHeader
- E05.2Thyrotoxicosis with toxic multinodular goiterHeader
- E05.3Thyrotoxicosis from ectopic thyroid tissueHeader
- E05.4Thyrotoxicosis factitiaHeader
- E05.8Other thyrotoxicosisHeader
- E05.9Thyrotoxicosis, unspecifiedHeader