2024 ICD-10-CM Diagnosis Code A39.81

Meningococcal encephalitis

• A39.81 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 A39.81 became effective on October 1, 2023.
• This is the American ICD-10-CM version of A39.81 – other international versions of ICD-10 A39.81 may differ.

The following code(s) above A39.81 contain annotation back-references

 that may be applicable to A39.81:

• A00-B99  Certain infectious and parasitic diseases

ICD-10-CM A39.81 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

• 023 Craniotomy with major device implant or acute complex cns principal diagnosis with mcc or chemotherapy implant or epilepsy with neurostimulator
• 024 Craniotomy with major device implant or acute complex cns principal diagnosis without mcc
• 094 Bacterial and tuberculous infections of nervous system with mcc
• 095 Bacterial and tuberculous infections of nervous system with cc
• 096 Bacterial and tuberculous infections of nervous system without cc/mcc

Convert A39.81 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 A39.81:

• Type 1 Excludes: G05

Diagnosis Index entries containing back-references to A39.81:

• Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) G04.90
  • meningococcal A39.81
• Infection, infected, infective (opportunistic) B99.9
  • meningococcalA39.9 – see also condition
    • brain A39.81
• MeningoencephalitisG04.90 – see also Encephalitis
  • epidemic A39.81
• Meningomyelitis – see also Meningoencephalitis
  • meningococcal A39.81