2024 ICD-10-CM Diagnosis Code B33.3

Retrovirus infections, not elsewhere classified

  • B33.3 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 B33.3 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of B33.3 – other international versions of ICD-10 B33.3 may differ.

Applicable To

  • Retrovirus infection NOS

The following code(s) above B33.3 contain annotation back-references

 that may be applicable to B33.3:

  • A00-B99  Certain infectious and parasitic diseases

Approximate Synonyms

  • Disease due to retroviridae
  • Retrovirus infection

Clinical Information

  • Virus diseases caused by the retroviridae family.
  • Virus diseases caused by the retroviridae.

ICD-10-CM B33.3 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

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

Convert B33.3 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

Code annotations containing back-references to B33.3:

  • Type 1 Excludes: B34

Diagnosis Index entries containing back-references to B33.3: