2024 ICD-10-CM Diagnosis Code B34

Viral infection of unspecified site

  • B34 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2024 edition of ICD-10-CM B34 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of B34 – other international versions of ICD-10 B34 may differ.

Type 1 Excludes

  • anogenital human papillomavirus infection (A63.0)
  • cytomegaloviral disease NOS (B25.9)
  • herpesvirus [herpes simplex] infection NOS (B00.9)
  • retrovirus infection NOS (B33.3)
  • viral agents as the cause of diseases classified elsewhere (B97.-)
  • viral warts due to human papillomavirus infection (B07)

The following code(s) above B34 contain annotation back-references

 that may be applicable to B34:

  • A00-B99  Certain infectious and parasitic diseases

Clinical Information

  • A general term for diseases produced by viruses.
  • Any disease caused by a virus.
  • Disease produced by viruses.
  • Viruses are capsules with genetic material inside. They are very tiny, much smaller than bacteria. Viruses cause familiar infectious diseases such as the common cold, flu and warts. They also cause severe illnesses such as hiv/aids, smallpox and hemorrhagic fevers. viruses are like hijackers. They invade living, normal cells and use those cells to multiply and produce other viruses like themselves. This eventually kills the cells, which can make you sick.viral infections are hard to treat because viruses live inside your body’s cells. They are “protected” from medicines, which usually move through your bloodstream. Antibiotics do not work for viral infections. There are a few antiviral medicines available. Vaccines can help prevent you from getting many viral diseases.

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
  • 2024 (effective 10/1/2023): No change