E05 — Thyrotoxicosis [hyperthyroidism]
Is E05 billable?
No — E05 is a non-billable header code. E05 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 14 billable codes beneath E05.
Billable codes under this header
- E05.00Thyrotoxicosis with diffuse goiter without thyrotoxic crisis or storm
- E05.01Thyrotoxicosis with diffuse goiter with thyrotoxic crisis or storm
- E05.10Thyrotoxicosis with toxic single thyroid nodule without thyrotoxic crisis or storm
- E05.11Thyrotoxicosis with toxic single thyroid nodule with thyrotoxic crisis or storm
- E05.20Thyrotoxicosis with toxic multinodular goiter without thyrotoxic crisis or storm
- E05.21Thyrotoxicosis with toxic multinodular goiter with thyrotoxic crisis or storm
- E05.30Thyrotoxicosis from ectopic thyroid tissue without thyrotoxic crisis or storm
- E05.31Thyrotoxicosis from ectopic thyroid tissue with thyrotoxic crisis or storm
- E05.40Thyrotoxicosis factitia without thyrotoxic crisis or storm
- E05.41Thyrotoxicosis factitia with thyrotoxic crisis or storm
- E05.80Other thyrotoxicosis without thyrotoxic crisis or storm
- E05.81Other thyrotoxicosis with thyrotoxic crisis or storm
- E05.90Thyrotoxicosis, unspecified without thyrotoxic crisis or storm
- E05.91Thyrotoxicosis, unspecified with thyrotoxic crisis or storm
E05 at a glance
| Code | E05 |
|---|---|
| Description | Thyrotoxicosis [hyperthyroidism] |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with E05 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from Chapter 4
The conditions below can never be reported together with E05 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- transitory endocrine and metabolic disorders specific to newborn (P70-P74)
What codes fall under E05? (7)
- E05.0Thyrotoxicosis with diffuse goiternot billable
- E05.1Thyrotoxicosis with toxic single thyroid nodulenot billable
- E05.2Thyrotoxicosis with toxic multinodular goiternot billable
- E05.3Thyrotoxicosis from ectopic thyroid tissuenot billable
- E05.4Thyrotoxicosis factitianot billable
- E05.8Other thyrotoxicosisnot billable
- E05.9Thyrotoxicosis, unspecifiednot billable
How long has E05 existed?
E05 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with E05?
ICD-10-CM declares these codes mutually exclusive with E05 — exactly one of each pair can be correct for a given encounter.