2020

  1. ICD-10-CM Codes
    2. ›
  2. R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
    3. ›
  3. R50-R69 General symptoms and signs
    4. ›
  4. R63- Symptoms and signs concerning food and fluid intake
    5. ›
  5. 2020 ICD-10-CM Diagnosis Code R63.0

2020 ICD-10-CM Diagnosis Code R63.0

Anorexia

    2016 2017 2018 2019 2020 Billable/Specific Code
  • R63.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM R63.0 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of R63.0 - other international versions of ICD-10 R63.0 may differ.
Applicable To
  • Loss of appetite
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 R63.0. 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.
  • anorexia nervosa (
    ICD-10-CM Diagnosis Code F50.0

    Anorexia nervosa

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • loss of appetite (R63.0)
    • psychogenic loss of appetite (F50.89)
    F50.0-
    )
  • loss of appetite of nonorganic origin (
    ICD-10-CM Diagnosis Code F50.89

    Other specified eating disorder

      2017 - New Code 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Pica in adults
    • Psychogenic loss of appetite
    F50.89
    )
The following code(s) above R63.0 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 R63.0:
  • R00-R99
    2020 ICD-10-CM Range R00-R99

    Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

    Note
    • This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
    • Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
    • The conditions and signs or symptoms included in categories R00-R94 consist of:
    • (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
    • (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
    • (c) provisional diagnosis in a patient who failed to return for further investigation or care;
    • (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
    • (e) cases in which a more precise diagnosis was not available for any other reason;
    • (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.
    Type 2 Excludes
    • abnormal findings on antenatal screening of mother (O28.-)
    • certain conditions originating in the perinatal period (P04-P96)
    • signs and symptoms classified in the body system chapters
    • signs and symptoms of breast (N63, N64.5)
    Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
  • R63
    ICD-10-CM Diagnosis Code R63

    Symptoms and signs concerning food and fluid intake

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    Symptoms and signs concerning food and fluid intake
Approximate Synonyms
  • Loss of appetite
Clinical Information
  • A disorder characterized by a loss of appetite.
  • An abnormal loss of the appetite for food. Anorexia can be caused by cancer, aids, a mental disorder (i.e., anorexia nervosa), or other diseases.
  • Clinical manifestation consisting of a physiopathological lack or loss of appetite accompanied by an aversion to food and the inability to eat.
  • Loss of appetite.
  • The lack or loss of appetite accompanied by an aversion to food and the inability to eat. It is the defining characteristic of the disorder anorexia nervosa.
ICD-10-CM R63.0 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 640 Miscellaneous disorders of nutrition, metabolism, fluids and electrolytes with mcc
  • 641 Miscellaneous disorders of nutrition, metabolism, fluids and electrolytes without mcc

Convert R63.0 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
Code annotations containing back-references to R63.0:
  • Type 1 Excludes: F50
    , F50.0
    ICD-10-CM Diagnosis Code F50

    Eating disorders

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • anorexia NOS (R63.0)
    • feeding difficulties (R63.3)
    • feeding problems of newborn (P92.-)
    • polyphagia (R63.2)
    Type 2 Excludes
    • feeding disorder in infancy or childhood (F98.2-)
    ICD-10-CM Diagnosis Code F50.0

    Anorexia nervosa

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • loss of appetite (R63.0)
    • psychogenic loss of appetite (F50.89)

Diagnosis Index entries containing back-references to R63.0:

ICD-10-CM Codes Adjacent To R63.0
R61 Generalized hyperhidrosis
R62 Lack of expected normal physiological development in childhood and adults
R62.0 Delayed milestone in childhood
R62.5 Other and unspecified lack of expected normal physiological development in childhood
R62.50 Unspecified lack of expected normal physiological development in childhood
R62.51 Failure to thrive (child)
R62.52 Short stature (child)
R62.59 Other lack of expected normal physiological development in childhood
R62.7 Adult failure to thrive
R63 Symptoms and signs concerning food and fluid intake
R63.0 Anorexia
R63.1 Polydipsia
R63.2 Polyphagia
R63.3 Feeding difficulties
R63.4 Abnormal weight loss
R63.5 Abnormal weight gain
R63.6 Underweight
R63.8 Other symptoms and signs concerning food and fluid intake
R64 Cachexia
R65 Symptoms and signs specifically associated with systemic inflammation and infection
R65.1 Systemic inflammatory response syndrome (SIRS) of non-infectious origin

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

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