E51 is the ICD-10 code for Thiamine deficiency. It is a three-character category divided into 4 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block E50–E64 (Other nutritional deficiencies) in Chapter IV, Endocrine, nutritional and metabolic diseases.
- Code type
- Category (3 characters)
- Chapter
- IV · E00–E90
- Classification
- WHO ICD-10, 2019 version
What E51 excludes
Conditions that look similar but belong under another code.
- sequelae of thiamine deficiency E64.8
Subcodes of E51
E51 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
E51Tiaminbrist
DE51Tiaminmangel
E51Tiamiininpuute
E51Thiaminmangel [Vitamin-B
E51Carence en thiamine
E51thiaminedeficiëntie
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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