ICD-10-CM · Chapter 4 · E00-E89
E05 Thyrotoxicosis [hyperthyroidism]
Excludes 1 (cannot be coded together)
- chronic thyroiditis with transient thyrotoxicosis (E06.2)
- neonatal thyrotoxicosis (P72.1)
Subcodes
Each subcode links to a detail page with full clinical annotations.
| Code | Description | Billable |
|---|---|---|
| E05..0 | Thyrotoxicosis with diffuse goiter | No |
| E05..00 | Thyrotoxicosis with diffuse goiter without thyrotoxic crisis or storm | Yes |
| E05..01 | Thyrotoxicosis with diffuse goiter with thyrotoxic crisis or storm | Yes |
| E05..1 | Thyrotoxicosis with toxic single thyroid nodule | No |
| E05..10 | Thyrotoxicosis with toxic single thyroid nodule without thyrotoxic crisis or storm | Yes |
| E05..11 | Thyrotoxicosis with toxic single thyroid nodule with thyrotoxic crisis or storm | Yes |
| E05..2 | Thyrotoxicosis with toxic multinodular goiter | No |
| E05..20 | Thyrotoxicosis with toxic multinodular goiter without thyrotoxic crisis or storm | Yes |
| E05..21 | Thyrotoxicosis with toxic multinodular goiter with thyrotoxic crisis or storm | Yes |
| E05..3 | Thyrotoxicosis from ectopic thyroid tissue | No |
| E05..30 | Thyrotoxicosis from ectopic thyroid tissue without thyrotoxic crisis or storm | Yes |
| E05..31 | Thyrotoxicosis from ectopic thyroid tissue with thyrotoxic crisis or storm | Yes |
| E05..4 | Thyrotoxicosis factitia | No |
| E05..40 | Thyrotoxicosis factitia without thyrotoxic crisis or storm | Yes |
| E05..41 | Thyrotoxicosis factitia with thyrotoxic crisis or storm | Yes |
| E05..8 | Other thyrotoxicosis | No |
| E05..80 | Other thyrotoxicosis without thyrotoxic crisis or storm | Yes |
| E05..81 | Other thyrotoxicosis with thyrotoxic crisis or storm | Yes |
| E05..9 | Thyrotoxicosis, unspecified | No |
| E05..90 | Thyrotoxicosis, unspecified without thyrotoxic crisis or storm | Yes |
| E05..91 | Thyrotoxicosis, unspecified with thyrotoxic crisis or storm | Yes |
Plain-language term for this code
The following entry in the US Medical Glossary corresponds to ICD-10-CM category E05:
- Hyperthyroidism — Hipertiroidismo
Last reviewed: September 2026