E51.1

Non-Billable

ChapterE00–E89

Ranksubcategory

Official Description

Beriberi

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Non-billable category (requires more specific sub-code).
•Chapter 4: Endocrine, Nutritional and Metabolic Diseases (E00-E89).

General instructions are available for the parent sections:

View CH4 Notes View E50-E64 Notes View E51 Notes

Clinical Hierarchy

CH4Endocrine, nutritional and metabolic diseases (E00-E89)

E50-E64Other nutritional deficiencies (E50-E64)

E51Thiamine deficiency

E51.1Beriberi

E51.11Dry beriberi

E51.12Wet beriberi

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to E51.1:

categoryE51

Thiamine deficiency

View context instructions

blockE50-E64

Other nutritional deficiencies (E50-E64)

View context instructions

chapterCH4

Endocrine, nutritional and metabolic diseases (E00-E89)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to E51.1. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

25 raw paths

Avitaminosis (multiple)1 unique routes

with

beriberi→E51.1

Beriberi (dry)5 unique routes

Direct index entry→E51.1

heart (disease)→E51.1

polyneuropathy→E51.1

wet→E51.1(2 variants)

involving circulatory system→E51.1

Cardiomyopathy (familial) (idiopathic)3 unique routes

due to

Deficiency, deficient7 unique routes

thiamin, thiaminic (chloride)(2 variants)

beriberi (dry)→E51.1(2 variants)

wet→E51.1

vitamin (multiple) NOS(5 variants)

B (complex) NOS(2 variants)

with(2 variants)

beriberi (dry)→E51.1(2 variants)

wet→E51.1

B1 NOS(3 variants)

beriberi (dry)→E51.1(3 variants)

wet→E51.1

with circulatory system manifestations→E51.1

Disease, diseased1 unique routes

heart (organic)

beriberi (wet)→E51.1

Kakke1 unique routes

Direct index entry→E51.1

Myocardiopathy (congestive) (constrictive) (familial) (hypertrophic nonobstructive) (idiopathic) (infiltrative) (obstructive) (primary) (restrictive) (sporadic)1 unique routes

in (due to)

beriberi→E51.1

Neuritis (rheumatoid)4 unique routes

due to

multiplex endemica→E51.1

Panneuritis endemica1 unique routes

Direct index entry→E51.1

Polioencephalopathy, superior hemorrhagic1 unique routes

with

beriberi→E51.1

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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