2023

  1. ICD-10-CM Codes
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  2. R00-R99
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  3. R50-R69
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  5. 2023 ICD-10-CM Diagnosis Code R59.9

2023 ICD-10-CM Diagnosis Code R59.9

Enlarged lymph nodes, unspecified

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • R59.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2023 edition of ICD-10-CM R59.9 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of R59.9 - other international versions of ICD-10 R59.9 may differ.
The following code(s) above R59.9 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 R59.9:
  • R00-R99
    2023 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
  • R59
    ICD-10-CM Diagnosis Code R59

    Enlarged lymph nodes

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Includes
    • swollen glands
    Type 1 Excludes
    • lymphadenitis NOS (I88.9)
    • acute lymphadenitis (L04.-)
    • chronic lymphadenitis (I88.1)
    • mesenteric (acute) (chronic) lymphadenitis (I88.0)
    Enlarged lymph nodes
Approximate Synonyms
  • Giant lymph node hyperplasia
  • Lymphoid hyperplasia
  • Reactive hyperplasia of lymph node
Clinical Information
  • A clinical finding indicating that a lymph node is enlarged. Causes include viral and bacterial infections and cancers that affect the lymph nodes.
  • Disease or swelling of the lymph nodes.
  • Lymphadenopathy: the abnormal enlargement of lymph nodes.
ICD-10-CM R59.9 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 814 Reticuloendothelial and immunity disorders with mcc
  • 815 Reticuloendothelial and immunity disorders with cc
  • 816 Reticuloendothelial and immunity disorders without cc/mcc

Convert R59.9 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
  • 2023 (effective 10/1/2022): No change

Diagnosis Index entries containing back-references to R59.9:

ICD-10-CM Codes Adjacent To R59.9
R56.9 Unspecified convulsions
R57 Shock, not elsewhere classified
R57.0 Cardiogenic shock
R57.1 Hypovolemic shock
R57.8 Other shock
R57.9 Shock, unspecified
R58 Hemorrhage, not elsewhere classified
R59 Enlarged lymph nodes
R59.0 Localized enlarged lymph nodes
R59.1 Generalized enlarged lymph nodes
R59.9 Enlarged lymph nodes, unspecified
R60 Edema, not elsewhere classified
R60.0 Localized edema
R60.1 Generalized edema
R60.9 Edema, unspecified
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)

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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