Thiamine deficiency, unspecified

This code signifies a nutritional deficiency specifically involving thiamine (vitamin B1) where the exact type or manifestation of the deficiency is not documented. It indicates an inadequate intake, absorption, or utilization of thiamine, which is crucial for cellular energy metabolism.

Utilize this code when documentation confirms a thiamine deficiency but lacks specificity regarding its clinical presentation (e.g., beriberi, Wernicke-Korsakoff syndrome). This code is appropriate when laboratory results indicate low thiamine levels without further diagnostic clarification of the specific syndrome.

• Avoid using this code if a more specific thiamine deficiency diagnosis (e.g., E51.1, E51.2) is documented.
• Ensure documentation supports a confirmed deficiency, not just suspected or rule-out.
• Consider sequencing this code as a secondary diagnosis if the primary reason for the encounter is a complication directly resulting from the thiamine deficiency.