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2. ICD-10 Codes
3. Chapter - E00-E89
4. Section - E50-E64
5. Category - E51
6. E51.9

E51.9 - Thiamine deficiency, unspecified

• Applicable to Thiamine deficiency, unspecified
• The 2025 edition of ICD10-CM E51.9 became effective on October 1, 2024.
• This is the American ICD10-CM version of E51.9 - other international versions of ICD10 E51.9 may differ.
• E51.9 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

The following codes above E51.9 contain annotation back-references that may be applicable to E51.9:

• Chapter: E00-E89 - Endocrine, nutritional and metabolic diseases
• Section: E50-E64 - Other nutritional deficiencies
• Category: E51 - Thiamine deficiency

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.