E51.9
Thiamine deficiency, unspecified
Billable code
This code does not map to a risk-adjusting HCC in the loaded models.
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
Inherited from E51Thiamine deficiency
Excludes 1
sequelae of thiamine deficiency (E64.8)
Inherited from E50-E64Other nutritional deficiencies
Excludes 2
nutritional anemias (D50-D53)
Inherited from chapter 4Endocrine, nutritional and metabolic diseases
Excludes 1
transitory endocrine and metabolic disorders specific to newborn (P70-P74)
Official Guidelines for E51.9
FY 2026 ›Find E51.9 in the alphabetic index
6 index paths lead to this code