E46

Billable

Unspecified protein-calorie malnutrition

E46 is the ICD-10-CM code for Unspecified protein-calorie malnutrition. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
E00-E89
Edition
FY2026

E00-E89 Endocrine, nutritional and metabolic diseases

Includes

  • Malnutrition NOS
  • Protein-calorie imbalance NOS

Excludes1 — not coded here

  • nutritional deficiency NOS (E63.9)

Frequently asked questions

What is ICD-10 code E46?
E46 is the ICD-10-CM code for "Unspecified protein-calorie malnutrition". It falls under E00-E89 Endocrine, nutritional and metabolic diseases.
Is E46 a billable code?
Yes — E46 is a billable, specific ICD-10-CM code valid for reimbursement.
What is excluded from E46?
Excludes1 (not coded here): nutritional deficiency NOS (E63.9).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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