E05 ICD-10-CM Code: Thyrotoxicosis [hyperthyroidism]
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
E05Thyrotoxicosis [hyperthyroidism]
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where E05 sits
- 1
Chapter 4
Endocrine, nutritional and metabolic diseases (E00-E89)
- 2
Section
Disorders of thyroid gland (E00-E07)
- 3
Category E05
Thyrotoxicosis [hyperthyroidism]
- 4
Code E05
Thyrotoxicosis [hyperthyroidism]
More specific choices
Codes under E05
E05 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for E05.
Code first
No “code first” instruction is listed for E05.
Use additional code
No “use additional code” instruction is listed for E05.
Excludes1
Conditions that should not be reported together with this code.
- chronic thyroiditis with transient thyrotoxicosis (E06.2)
- neonatal thyrotoxicosis (P72.1)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for E05.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code E05 mean?
E05 is the FY 2027 U.S. ICD-10-CM code for “Thyrotoxicosis [hyperthyroidism].”
Is E05 a billable or specific ICD-10-CM code?
No. E05 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is E05 located in ICD-10-CM?
E05 is listed in Chapter 4, Endocrine, nutritional and metabolic diseases (E00-E89), within Disorders of thyroid gland (E00-E07) (E00–E07), under category E05, Thyrotoxicosis [hyperthyroidism].
What coding notes are listed for E05?
No inclusion terms are listed for E05 in this reference record. No code-first instruction is listed. Excludes1 notes: chronic thyroiditis with transient thyrotoxicosis (E06.2); neonatal thyrotoxicosis (P72.1). No Excludes2 note is listed.
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