U.S. ICD-10-CM · FY 2027

E46 ICD-10-CM Code: Unspecified protein-calorie malnutrition

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

E46

Unspecified protein-calorie malnutrition

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where E46 sits

  1. 1

    Chapter 4

    Endocrine, nutritional and metabolic diseases (E00-E89)

  2. 2

    Section

    Malnutrition (E40-E46)

  3. 3

    Category E46

    Unspecified protein-calorie malnutrition

  4. 4

    Code E46

    Unspecified protein-calorie malnutrition

Documentation details

Notes for this code

Inclusion terms

  • Malnutrition NOS
  • Protein-calorie imbalance NOS

Code first

No “code first” instruction is listed for E46.

Use additional code

No “use additional code” instruction is listed for E46.

Excludes1

Conditions that should not be reported together with this code.

  • nutritional deficiency NOS (E63.9)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for E46.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code E46 mean?

E46 is the FY 2027 U.S. ICD-10-CM code for “Unspecified protein-calorie malnutrition.”

Is E46 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, E46 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is E46 located in ICD-10-CM?

E46 is listed in Chapter 4, Endocrine, nutritional and metabolic diseases (E00-E89), within Malnutrition (E40-E46) (E40–E46), under category E46, Unspecified protein-calorie malnutrition.

What coding notes are listed for E46?

Its listed inclusion terms are Malnutrition NOS; Protein-calorie imbalance NOS. No code-first instruction is listed. Excludes1 notes: nutritional deficiency NOS (E63.9). No Excludes2 note is listed.

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