2022 ICD-10-CM Diagnosis Code E46

Unspecified protein-calorie malnutrition

    2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
  • E46 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2022 edition of ICD-10-CM E46 became effective on October 1, 2021.
  • This is the American ICD-10-CM version of E46 - other international versions of ICD-10 E46 may differ.
Applicable To
  • Malnutrition NOS
  • Protein-calorie imbalance NOS
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as E46. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • nutritional deficiency NOS (
    ICD-10-CM Diagnosis Code E63.9

    Nutritional deficiency, unspecified

      2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
    E63.9
    )
The following code(s) above E46 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to E46:
  • E00-E89
    2022 ICD-10-CM Range E00-E89

    Endocrine, nutritional and metabolic diseases

    Note
    • All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.
    Type 1 Excludes
    • transitory endocrine and metabolic disorders specific to newborn (P70-P74)
    Endocrine, nutritional and metabolic diseases
  • E40-E46
    2022 ICD-10-CM Range E40-E46

    Malnutrition

    Type 1 Excludes
    • intestinal malabsorption (K90.-)
    • sequelae of protein-calorie malnutrition (E64.0)
    Type 2 Excludes
    Malnutrition
Approximate Synonyms
  • Deficiency of macronutrients
  • Hypoalbuminemia due to protein calorie malnutrition
  • Malnutrition
  • Malnutrition (calorie)
  • Malnutrition, not enough calories in diet
  • Nutritional disorder
  • Protein calorie malnutrition
  • Protein-calorie malnutrition with hypoalbuminemia
Clinical Information
  • A condition caused by not getting enough calories or the right amount of key nutrients, such as vitamins and minerals, that are needed for health. Malnutrition may occur when there is a lack of nutrients in the diet or when the body cannot absorb nutrients from food. Cancer and cancer treatment may cause malnutrition.
  • An imbalanced nutritional status resulted from insufficient intake of nutrients to meet normal physiological requirement.
  • Disorder of nutrition due to unbalanced or insufficient diet or to defective assimilation or utilization of nutrients.
  • 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. Your doctor will do tests, depending on the cause of your problem. Treatment may include replacing the missing nutrients and treating the underlying cause.
  • Inadequate nutrition resulting from poor diet, malabsorption, or abnormal nutrient distribution.
  • The lack of sufficient energy or protein to meet the body's metabolic demands, as a result of either an inadequate dietary intake of protein, intake of poor quality dietary protein, increased demands due to disease, or increased nutrient losses.
ICD-10-CM E46 is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):
  • 640 Miscellaneous disorders of nutrition, metabolism, fluids and electrolytes with mcc
  • 641 Miscellaneous disorders of nutrition, metabolism, fluids and electrolytes without mcc
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems

Convert E46 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
Code annotations containing back-references to E46:
  • Note: E64
    ICD-10-CM Diagnosis Code E64

    Sequelae of malnutrition and other nutritional deficiencies

      2016 2017 2018 2019 2020 2021 2022 Non-Billable/Non-Specific Code
    Code First
    • condition resulting from (sequela) of malnutrition and other nutritional deficiencies
    Note
    • This category is to be used to indicate conditions in categories E43, E44, E46, E50-E63 as the cause of sequelae, which are themselves classified elsewhere. The 'sequelae' include conditions specified as such; they also include the late effects of diseases classifiable to the above categories if the disease itself is no longer present

Diagnosis Index entries containing back-references to E46:

ICD-10-CM Codes Adjacent To E46
E36.12 Accidental puncture and laceration of an endocrine system organ or structure during other procedure
E36.8 Other intraoperative complications of endocrine system
E40 Kwashiorkor
E41 Nutritional marasmus
E42 Marasmic kwashiorkor
E43 Unspecified severe protein-calorie malnutrition
E44 Protein-calorie malnutrition of moderate and mild degree
E44.0 Moderate protein-calorie malnutrition
E44.1 Mild protein-calorie malnutrition
E45 Retarded development following protein-calorie malnutrition
E46 Unspecified protein-calorie malnutrition
E50 Vitamin A deficiency
E50.0 Vitamin A deficiency with conjunctival xerosis
E50.1 Vitamin A deficiency with Bitot's spot and conjunctival xerosis
E50.2 Vitamin A deficiency with corneal xerosis
E50.3 Vitamin A deficiency with corneal ulceration and xerosis
E50.4 Vitamin A deficiency with keratomalacia
E50.5 Vitamin A deficiency with night blindness
E50.6 Vitamin A deficiency with xerophthalmic scars of cornea
E50.7 Other ocular manifestations of vitamin A deficiency
E50.8 Other manifestations of vitamin A deficiency

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.