2024 ICD-10-CM Diagnosis Code B02.0

by

Zoster encephalitis

  • B02.0 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 B02.0 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of B02.0 – other international versions of ICD-10 B02.0 may differ.

Applicable To

  • Zoster meningoencephalitis

The following code(s) above B02.0 contain annotation back-references

 that may be applicable to B02.0:

  • A00-B99  Certain infectious and parasitic diseases
  • B02  Zoster [herpes zoster]

Approximate Synonyms

  • Herpes zoster encephalitis

Clinical Information

  • Inflammation of brain tissue caused by infection with the varicella-zoster virus (herpesvirus 3, human). This condition is associated with immunocompromised states, including the acquired immunodeficiency syndrome. Pathologically, the virus tends to induce a vasculopathy and infect oligodendrocytes and ependymal cells, leading to cerebral infarction, multifocal regions of demyelination, and periventricular necrosis. Manifestations of varicella encephalitis usually occur 5-7 days after onset of herpes zoster and include headache; vomiting; lethargy; focal neurologic deficits; fever; and coma. (from Joynt, Clinical Neurology, 1996, ch 26, pp29-32; hum pathol 1996 sep;27(9):927-38)

ICD-10-CM B02.0 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 073 Cranial and peripheral nerve disorders with mcc
  • 074 Cranial and peripheral nerve disorders without mcc
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems
  • 974 Hiv with major related condition with mcc
  • 975 Hiv with major related condition with cc
  • 976 Hiv with major related condition without cc/mcc

Convert B02.0 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 B02.0:

Diagnosis Index entries containing back-references to B02.0: