2027 ICD-10-CM Diagnosis Code E51.11Dry beriberi

ICD-10-CM Codes›E00–E89›E50-E64›E51

ICD-10-CM E51.11
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

E51.11 is a billable ICD-10-CM diagnosis code for dry beriberi. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 640 through 641. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 34 closely related codes. Coders also document this condition as beriberi. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Nutritional deficiencies.

Code Identity

ICD-10-CM Code
E51.11
Billable Status
Yes — Valid for Submission
Code Describes
Dry beriberi
Short Description
Dry beriberi
Same as the full description in the CMS dataset.
Parent Code
E51.1
Beriberi

Code Classification

ChapterE00–E89Endocrine, nutritional and metabolic diseases
SectionE50-E64Other nutritional deficiencies
CategoryE51Thiamine deficiency
This CodeE51.11Dry beriberi

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Beriberi
  • Beriberi neuropathy
  • Dry beriberi
  • Infantile beriberi
  • Neuropathy due to vitamin B deficiency

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to E51.11: its own notes plus those printed at E51, block E50-E64, and Chapter 4. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Beriberi NOS
  • Beriberi with polyneuropathy

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From E51 Thiamine deficiency applies to 5 codes
  • sequelae of thiamine deficiency (E64.8)
From Chapter 4 (E00-E89) Endocrine, nutritional and metabolic diseases applies to 973 codes
  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Block E50-E64 Other nutritional deficiencies applies to 50 codes

Notes

General instructions on how these codes are used.

From Chapter 4 (E00-E89) Endocrine, nutritional and metabolic diseases applies to 973 codes
  • All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name E51.11, its category, or a range that includes it.

Applicable To 1

These notes mention E51.11.

  • P00.4 Newborn affected by maternal nutritional disorders
    Newborn affected by maternal disorders classifiable to E40-E64 names E40-E64, which includes this code

Excludes1 2

These codes carry an Excludes1 note naming E51.11: they are not reported together with it, unless the two conditions are unrelated.

  • T45.2X6 Underdosing of vitamins
    vitamin deficiencies (E50-E56) names E50-E56, which includes this code
  • Z72.4 Inappropriate diet and eating habits
    malnutrition and other nutritional deficiencies (E40-E64) names E40-E64, which includes this code

Code First 1

These codes say to code first a condition named in the note, and E51.11 is one of the conditions named.

  • G63 Polyneuropathy in diseases classified elsewhere
    nutritional deficiency (E40-E64) names E40-E64, which includes this code

Notes 1

These notes mention E51.11.

  • E64 Sequelae of malnutrition and other nutritional deficiencies
    This category is to be used to indicate conditions in categories E43, E44, E46, E50-E63 as the cause of sequelae, which are themselves classified elsewhere. The 'sequelae' include conditions specified as such; they also include the late effects of diseases classifiable to the above categories if the disease itself is no longer present names E50-E63, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR END007
Nutritional deficiencies
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Beriberi

    a disease caused by a deficiency of thiamine (vitamin b1) and characterized by polyneuritis, cardiac pathology, and edema. the epidemic form is found primarily in areas in which white (polished) rice is the staple food, as in japan, china, the philippines, india, and other countries of southeast asia. (dorland, 27th ed)

Patient EducationClinical

B Vitamins

The B vitamins are:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert E51.11 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
265.0 Beriberi
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About E51.11Overview

What is the ICD-10 code for dry beriberi?

The ICD-10-CM code for dry beriberi is E51.11 (sometimes written as E5111). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is E51.11 (Beriberi) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report dry beriberi on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does E51.11 group to?

When dry beriberi is the principal diagnosis on an inpatient stay, it groups to MS-DRG 641, 640, with relative weights from 0.7864 to 1.3392 depending on complications. Higher weights mean higher Medicare reimbursement.

Is E51.11 a CC or MCC?

CMS lists E51.11 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 34 closely related codes in its exclusion list.

Can E51.11 be reported with E64.8?

Not as a rule. The Excludes1 note at E51, which applies to E51.11, lists "sequelae of thiamine deficiency (E64.8)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).