Is E05 a billable code?
No. E05 is a header code that groups 14 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
E05: Thyrotoxicosis [hyperthyroidism]
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
E05 groups related diagnoses under thyrotoxicosis [hyperthyroidism]. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under E05
- 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 questions
What does E05 mean?
E05 is the ICD-10-CM code for Thyrotoxicosis [hyperthyroidism]. It is in chapter 4, Endocrine, nutritional and metabolic diseases (E00-E89).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.