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3. Chapter - E00-E89
4. Section - E00-E07
5. Category - E05
6. E05.91

E05.91 - Thyrotoxicosis, unspecified with thyrotoxic crisis or storm

• Applicable to Thyrotoxicosis, unspecified with thyrotoxic crisis or storm
• The 2025 edition of ICD10-CM E05.91 became effective on October 1, 2024.
• This is the American ICD10-CM version of E05.91 - other international versions of ICD10 E05.91 may differ.
• E05.91 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

The following codes above E05.91 contain annotation back-references that may be applicable to E05.91:

• Chapter: E00-E89 - Endocrine, nutritional and metabolic diseases
• Section: E00-E07 - Disorders of thyroid gland
• Category: E05 - Thyrotoxicosis [hyperthyroidism]

Browse other similar CM codes:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.