E40-E46 is the authoritative medical code for Malnutrition. This classification is used in medical billing and clinical recording to specify the clinical criteria for malnutrition (ICD-10-CM E40-E46), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Malnutrition E40-E46 is a non-billable ICD-10-CM category code E40-E46. A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): intestinal malabsorption K90.-; sequelae of protein-calorie malnutrition E64.0. Excludes2 (not included here): nutritional anemias D50-D53; starvation T73.0.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for E40-E46 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- intestinal malabsorption K90.-
- sequelae of protein-calorie malnutrition E64.0
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- nutritional anemias D50-D53
- starvation T73.0
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with E40-E46?
Per Excludes1 instructions, E40-E46 must not be reported with: intestinal malabsorption (K90.-); sequelae of protein-calorie malnutrition (E64.0).
Can E40-E46 be reported alongside related conditions?
Per Excludes2 instructions, E40-E46 and the following may both be reported when both are present: nutritional anemias (D50-D53); starvation (T73.0).
Codes in This Family (9)
Official ICD-10-CM classifications in the same code family as E40-E46, with their registry titles.
- E40 — Kwashiorkor
- E41 — Nutritional marasmus
- E42 — Marasmic kwashiorkor
- E43 — Unspecified severe protein-calorie malnutrition
- E44 — Protein-calorie malnutrition of moderate and mild degree
- E45 — Retarded development following protein-calorie malnutrition
- E46 — Unspecified protein-calorie malnutrition
- E44.0 — Moderate protein-calorie malnutrition
- E44.1 — Mild protein-calorie malnutrition
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
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ICD Code E36-E46
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ICD Code E37-E46
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ICD Code E38-E46
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ICD Code E39-E46
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ICD Code E41-E46
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ICD Code E42-E46
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ICD Code E44-E46
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ICD Code E45-E46
Chapter 4: Endocrine, Nutritional and Metabolic Diseases (E00-E89) (E00-E89)