2021 ICD-10-CM Diagnosis Code R63.4: Abnormal weight loss

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    1. ICD-10-CM Codes
    2. R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
    3. R50-R69 General symptoms and signs
    4. R63- Symptoms and signs concerning food and fluid intake
    5. 2021 ICD-10-CM Diagnosis Code R63.4

    Abnormal weight loss

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • R63.4 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
    • The 2021 edition of ICD-10-CM R63.4 became effective on October 1, 2020.
    • This is the American ICD-10-CM version of R63.4 – other international versions of ICD-10 R63.4 may differ.

    The following code(s) above R63.4 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 R63.4:

    • R00-R99

      2021 ICD-10-CM Range R00-R99

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

      • 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 2021 Non-Billable/Non-Specific Code

      Symptoms and signs concerning food and fluid intake

    Approximate Synonyms

    • Abnormal intentional loss of weight
    • Abnormal intentional weight loss
    • Abnormal loss of weight
    • Intentional weight loss
    • Unintentional weight loss

    ICD-10-CM R63.4 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):

    • 640 Miscellaneous disorders of nutrition, metabolism, fluids and electrolytes with mcc
    • 641 Miscellaneous disorders of nutrition, metabolism, fluids and electrolytes without mcc

    Convert R63.4 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

    Code annotations containing back-references to R63.4:

    • Type 1 Excludes: R63.6, R64

      ICD-10-CM Diagnosis Code R63.6

      Underweight

        2016 2017 2018 2019 2020 2021 Billable/Specific Code

      Use Additional

      • code to identify body mass index (BMI), if known (Z68.-)

      ICD-10-CM Diagnosis Code R64

      Cachexia

        2016 2017 2018 2019 2020 2021 Billable/Specific Code

      Code First

      • underlying condition, if known

      Type 1 Excludes

      • abnormal weight loss (R63.4)
      • nutritional marasmus (E41)
    • Use Additional: U07.0

      ICD-10-CM Diagnosis Code U07.0

      Vaping-related disorder

        2021 – New Code Billable/Specific Code

      Applicable To

      • Dabbing related lung damage
      • Dabbing related lung injury
      • E-cigarette, or vaping, product use associated lung injury [EVALI]
      • Electronic cigarette related lung damage
      • Electronic cigarette related lung injury

      Use Additional

      • code to identify manifestations, such as:
      • abdominal pain (R10.84)
      • acute respiratory distress syndrome (J80)
      • diarrhea (R19.7)
      • drug-induced interstitial lung disorder (J70.4)
      • lipoid pneumonia (J69.1)
      • weight loss (R63.4)

    ICD-10-CM Codes Adjacent To R63.4

    R62.50 Unspecified lack of expected normal physiological development in childhood R62.51 Failure to thrive (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 R63.3 Feeding difficulties

    R63.4 Abnormal weight loss

    R63.5 Abnormal weight gain R63.8 Other symptoms and signs concerning food and fluid intake R65 Symptoms and signs specifically associated with systemic inflammation and infection R65.1 Systemic inflammatory response syndrome (SIRS) of non-infectious origin R65.10 …… without acute organ dysfunction R65.11 …… with acute organ dysfunction R65.20 …… without septic shock

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

    Source

     

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