All ICD10 Codes

E51

Non-Billable
ChapterE00–E89
Rankcategory
Official Description

Thiamine deficiency

Use a more specific code (3 billable, 1 non-billable)
E51.1Beriberihas subcodesE51.2Wernicke's encephalopathyE51.8Other manifestations of thiamine deficiencyE51.9Thiamine deficiency, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 4: Endocrine, Nutritional and Metabolic Diseases (E00-E89).

CH4 Parent Instructions

Excludes1(Not coded here. Use a different code.)
  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)

E50-E64 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • sequelae of thiamine deficiency (E64.8)

Clinical Hierarchy

BillableHas subcodes
CH4Endocrine, nutritional and metabolic diseases (E00-E89)
E50-E64Other nutritional deficiencies (E50-E64)
E51Thiamine deficiencyNot billable
E51.1BeriberiSubcodes
E51.2Wernicke's encephalopathyBillable
E51.8Other manifestations of thiamine deficiencyBillable
E51.9Thiamine deficiency, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to E51:

blockE50-E64
Other nutritional deficiencies (E50-E64)
View context instructions
chapterCH4
Endocrine, nutritional and metabolic diseases (E00-E89)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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