| E05 | Thyrotoxicosis [hyperthyroidism] | NON-BILLABLE CODE |
| E05.0 | Thyrotoxicosis with diffuse goiter | NON-BILLABLE CODE |
| E05.00 | Thyrotoxicosis with diffuse goiter without thyrotoxic crisis or storm | BILLABLE CODE |
| E05.1 | Thyrotoxicosis with toxic single thyroid nodule | NON-BILLABLE CODE |
| E05.10 | Thyrotoxicosis with toxic single thyroid nodule without thyrotoxic crisis or storm | BILLABLE CODE |
| E05.11 | Thyrotoxicosis with toxic single thyroid nodule with thyrotoxic crisis or storm | BILLABLE CODE |
| E05.2 | Thyrotoxicosis with toxic multinodular goiter | NON-BILLABLE CODE |
| E05.20 | Thyrotoxicosis with toxic multinodular goiter without thyrotoxic crisis or storm | BILLABLE CODE |
| E05.21 | Thyrotoxicosis with toxic multinodular goiter with thyrotoxic crisis or storm | BILLABLE CODE |
| E05.3 | Thyrotoxicosis from ectopic thyroid tissue | NON-BILLABLE CODE |
| E05.30 | Thyrotoxicosis from ectopic thyroid tissue without thyrotoxic crisis or storm | BILLABLE CODE |
| E05.31 | Thyrotoxicosis from ectopic thyroid tissue with thyrotoxic crisis or storm | BILLABLE CODE |
| E05.4 | Thyrotoxicosis factitia | NON-BILLABLE CODE |
| E05.40 | Thyrotoxicosis factitia without thyrotoxic crisis or storm | BILLABLE CODE |
| E05.41 | Thyrotoxicosis factitia with thyrotoxic crisis or storm | BILLABLE CODE |
| E05.8 | Other thyrotoxicosis | NON-BILLABLE CODE |
| E05.80 | Other thyrotoxicosis without thyrotoxic crisis or storm | BILLABLE CODE |
| E05.81 | Other thyrotoxicosis with thyrotoxic crisis or storm | BILLABLE CODE |
| E05.9 | Thyrotoxicosis, unspecified | NON-BILLABLE CODE |
| E05.90 | Thyrotoxicosis, unspecified without thyrotoxic crisis or storm | BILLABLE CODE |
| E05.91 | Thyrotoxicosis, unspecified with thyrotoxic crisis or storm | BILLABLE CODE |
