ICD-10-CM Tabular Index · Chapter 4 · FY 2026 E63

Other nutritional deficiencies (E63) ICD-10-CM

The E63 code range covers other nutritional deficiencies with 5 ICD-10-CM diagnosis codes. 4 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.

✓ Built from the official CMS FY 2026 datasetEffective Oct 1, 2025 – Sep 30, 2026
5
Diagnosis Codes
4
Billable Codes
E63
Code Range
E50–E64
Parent Section

Type 2 Excludes

A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

ICD-10-CM

Codes in the E63 Range 5 codes · 4 billable

5 of 5 shown
  • E63 Other nutritional deficienciesNon-billable
  • E63.0 Essential fatty acid [EFA] deficiency
  • E63.1 Imbalance of constituents of food intake
  • E63.8 Other specified nutritional deficiencies
  • E63.9 Nutritional deficiency, unspecified

About the E63 Code Range

The ICD-10 code section E63 covers various other nutritional deficiencies that do not fall under more common categories. These codes identify specific conditions like essential fatty acid deficiency, imbalances in food intake, and other specified or unspecified nutritional problems.

The ICD-10 code for essential fatty acid deficiency (E63.0) is used when a person lacks essential fatty acids crucial for health. The code E63.1 addresses imbalances in the nutritional composition of protein, carbohydrates, fats, or amino acids, such as excessive fat intake or inadequate carbohydrate consumption. E63.8 captures other specified nutritional deficiencies, including amino acid deficiency and conditions like dilated cardiomyopathy related to nutritional problems. Finally, E63.9 is for unspecified nutritional deficiency states, encompassing a wide range of conditions from acute or chronic deficiency to complex impacts like neurological disorders or nutritional deficiency-related cardiomyopathy. These codes help accurately document less common or unclear nutritional issues in medical records and billing, clarifying diagnoses when conditions are described by common terms such as "nutritional disorder," "malnutrition," or "nutritional neglect."

Questions About This Page

How many billable codes are in the E63 range?

Of the 5 codes in this range, 4 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.

What does the E63 range classify?

The range classifies other nutritional deficiencies. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.

Related References

Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.