2024 ICD-10-CM Diagnosis Code B01.11

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Varicella encephalitis and encephalomyelitis

  • B01.11 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 B01.11 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of B01.11 – other international versions of ICD-10 B01.11 may differ.

Applicable To

  • Postchickenpox encephalitis and encephalomyelitis

The following code(s) above B01.11 contain annotation back-references

 that may be applicable to B01.11:

  • A00-B99  Certain infectious and parasitic diseases
  • B01.1  Varicella encephalitis, myelitis and encephalomyelitis

Approximate Synonyms

  • Postvaricella encephalitis

ICD-10-CM B01.11 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 097 Non-bacterial infection of nervous system except viral meningitis with mcc
  • 098 Non-bacterial infection of nervous system except viral meningitis with cc
  • 099 Non-bacterial infection of nervous system except viral meningitis without cc/mcc
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems

Convert B01.11 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 B01.11: