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  3. E00–E89
  4. Malnutrition (E40-E46)

Malnutrition (E40-E46)

ICD-10 codes E40 through E46 cover various types of malnutrition, including severe forms like Kwashiorkor and nutritional marasmus, as well as unspecified and milder protein-calorie malnutrition. These codes are used to classify conditions related to inadequate nutrition affecting body weight and development.

This range includes specific conditions such as E40 Kwashiorkor, a severe protein deficiency often called Kwashiorkor, and E41 Nutritional marasmus, which covers nutritional wasting seen in infancy through adolescence. E42 Marasmic kwashiorkor describes a combination of these severe malnutrition forms. Codes like E43 and E46 address unspecified severe and unspecified protein-calorie malnutrition, useful when detailed diagnosis is unavailable. Milder cases are coded under E44, which breaks down into moderate (E44.0) and mild (E44.1) protein-calorie malnutrition. Additionally, E45 captures developmental delays and sequelae due to protein-calorie malnutrition, linking the nutritional deficiency to long-term physical and cognitive growth issues. These codes help healthcare professionals document and manage malnutrition-related health problems accurately.

Instructional Notations

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • intestinal malabsorption K90
  • sequelae of protein-calorie malnutrition E64.0

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.