2024 ICD-10-CM Diagnosis Code B27.09

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Gammaherpesviral mononucleosis with other complications

  • B27.09 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2024 edition of ICD-10-CM B27.09 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of B27.09 – other international versions of ICD-10 B27.09 may differ.

Applicable To

  • Hepatomegaly in gammaherpesviral mononucleosis

The following code(s) above B27.09 contain annotation back-references

 that may be applicable to B27.09:

  • A00-B99  Certain infectious and parasitic diseases
  • B27  Infectious mononucleosis
  • B27.0  Gammaherpesviral mononucleosis

Approximate Synonyms

  • Gamma herpes mononucleosis w hepatomegaly
  • Hepatomegaly due to gamma herpes mononucleosis

ICD-10-CM B27.09 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 865 Viral illness with mcc
  • 866 Viral illness without mcc

Convert B27.09 to ICD-9-CMCode 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
  • 2024 (effective 10/1/2023): No change

Diagnosis Index entries containing back-references to B27.09: