ICD-9 Diagnosis Code 263.9

Protein-cal malnutr NOS

Diagnosis Code 263.9

ICD-9: 263.9
Short Description: Protein-cal malnutr NOS
Long Description: Unspecified protein-calorie malnutrition
This is the 2014 version of the ICD-9-CM diagnosis code 263.9

Code Classification
  • Endocrine, nutritional and metabolic diseases, and immunity disorders
    • Nutritional deficiencies (260-269)
      • 263 Other and unspecified protein-calorie malnutrition

Information for Medical Professionals

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Index of Diseases and Injuries
References found for the code 263.9 in the Index of Diseases and Injuries:

Information for Patients


Food provides the energy and nutrients you need to be healthy. If you don't get enough nutrients -- including proteins, carbohydrates, fats, vitamins, and minerals - you may suffer from malnutrition.

Causes of malnutrition include:

  • Lack of specific nutrients in your diet. Even the lack of one vitamin can lead to malnutrition.
  • An unbalanced diet
  • Certain medical problems, such as malabsorption syndromes and cancers

Symptoms may include fatigue, dizziness, and weight loss. Or, you may have no symptoms. To diagnose the cause of the problem, your doctor may do blood tests and a nutritional assessment. Treatment may include replacing the missing nutrients and treating the underlying cause.

  • Beriberi
  • Kwashiorkor
  • Malnutrition
  • Pellagra
  • Pica
  • Scurvy

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