2027 ICD-10-CM Diagnosis Code E63.8Other specified nutritional deficiencies

ICD-10-CM Codes›E00–E89›E50-E64›E63

ICD-10-CM E63.8
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

E63.8 is a billable ICD-10-CM diagnosis code for other specified nutritional deficiencies. 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. Coders also document this condition as amino acid deficiency. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Nutritional deficiencies.

Code Identity

ICD-10-CM Code
E63.8
Billable Status
Yes — Valid for Submission
Code Describes
Other specified nutritional deficiencies
Short Description
Other specified nutritional deficiencies
Same as the full description in the CMS dataset.
Parent Code
E63
Other nutritional deficiencies

Code Classification

ChapterE00–E89Endocrine, nutritional and metabolic diseases
SectionE50-E64Other nutritional deficiencies
CategoryE63Other nutritional deficiencies
This CodeE63.8Other specified nutritional deficiencies

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Amino acid deficiency
  • Deficiency of taurine
  • Dilated cardiomyopathy due to metabolic disorder
  • Dilated cardiomyopathy due to nutritional deficiency
  • Dilated cardiomyopathy due to taurine deficiency

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to E63.8: its own notes plus those printed at E63, block E50-E64, and Chapter 4. A note printed at a category, block or chapter applies to every code under it.

Excludes1

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

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 E63 Other nutritional deficiencies applies to 4 codes
  • dehydration (E86.0)
  • failure to thrive, adult (R62.7)
  • failure to thrive, child (R62.51)
  • feeding problems in newborn (P92.-)
  • sequelae of malnutrition and other nutritional deficiencies (E64.-)
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 E63.8, its category, or a range that includes it.

Applicable To 1

These notes mention E63.8.

  • 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 1

These codes carry an Excludes1 note naming E63.8: they are not reported together with it, unless the two conditions are unrelated.

  • 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 E63.8 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 E63.8.

  • 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

Patient EducationClinical

Malnutrition

Malnutrition means that your body isn't getting enough calories or the right balance of nutrients to stay healthy. This can happen if you don't get enough protein, carbohydrates, and fats, eat too much unhealthy food, or don't get the vitamins and minerals your body needs.

The full article covers:

  • What is malnutrition?
  • What are the types of malnutrition?
  • What causes malnutrition?
  • Who is at risk for developing malnutrition?
  • What are the symptoms of malnutrition?
  • How is malnutrition diagnosed?
  • What are the treatments for malnutrition?
  • Can malnutrition be prevented?

Read the full article at MedlinePlus

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

Convert E63.8 to ICD-9-CMHistory

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

ICD-9-CM
269.8 Nutrition deficiency NEC
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 E63.8Overview

What is the ICD-10 code for other specified nutritional deficiencies?

The ICD-10-CM code for other specified nutritional deficiencies is E63.8 (sometimes written as E638). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is E63.8 (Other nutritional deficiencies) a billable code?

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

What MS-DRG does E63.8 group to?

When other specified nutritional deficiencies 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.

What is the ICD-9 equivalent of E63.8?

Under the General Equivalence Mappings, other specified nutritional deficiencies converts to ICD-9-CM 269.8 (nutrition deficiency NEC). The mapping is approximate, so confirm the match fits the documentation.