1. ICD-10-CM Codes
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2. A00-B99
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3. B50-B64
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4. B58-
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5. 2023 ICD-10-CM Diagnosis Code B58.2

2023 ICD-10-CM Diagnosis Code B58.2

Toxoplasma meningoencephalitis

2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

• B58.2 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2023 edition of ICD-10-CM B58.2 became effective on October 1, 2022.
• This is the American ICD-10-CM version of B58.2 - other international versions of ICD-10 B58.2 may differ.

• Acquired toxoplasmosis, meningoencephalitis
• Meningoencephalitis due to acquired toxoplasmosis

• Infections of the brain caused by the protozoan toxoplasma gondii that primarily arise in individuals with immunologic deficiency syndromes (see also aids-related opportunistic infections). The infection may involve the brain diffusely or form discrete abscesses. Clinical manifestations include seizures, altered mentation, headache, focal neurologic deficits, and intracranial hypertension. (from Joynt, Clinical Neurology, 1998, ch27, pp41-3)

• 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
• 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
• 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 B58.2 to ICD-9-CM

• 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

• Type 1 Excludes: G05
  ICD-10-CM Diagnosis Code G05

  Encephalitis, myelitis and encephalomyelitis in diseases classified elsewhere

  2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code

  Code First

  • underlying disease, such as:
  • congenital toxoplasmosis encephalitis, myelitis and encephalomyelitis (P37.1)
  • cytomegaloviral encephalitis, myelitis and encephalomyelitis (B25.8)
  • encephalitis, myelitis and encephalomyelitis (in) systemic lupus erythematosus (M32.19)
  • eosinophilic meningoencephalitis (B83.2)
  • human immunodeficiency virus [HIV] disease (B20)
  • poliovirus (A80.-)
  • suppurative otitis media (H66.01-H66.4)
  • trichinellosis (B75)

  Type 1 Excludes

  • adenoviral encephalitis, myelitis and encephalomyelitis (A85.1)
  • encephalitis, myelitis and encephalomyelitis (in) measles (B05.0)
  • enteroviral encephalitis, myelitis and encephalomyelitis (A85.0)
  • herpesviral [herpes simplex] encephalitis, myelitis and encephalomyelitis (B00.4)
  • listerial encephalitis, myelitis and encephalomyelitis (A32.12)
  • meningococcal encephalitis, myelitis and encephalomyelitis (A39.81)
  • mumps encephalitis, myelitis and encephalomyelitis (B26.2)
  • postchickenpox encephalitis, myelitis and encephalomyelitis (B01.1-)
  • rubella encephalitis, myelitis and encephalomyelitis (B06.01)
  • toxoplasmosis encephalitis, myelitis and encephalomyelitis (B58.2)
  • zoster encephalitis, myelitis and encephalomyelitis (B02.0)

• Encephalitis (chronic) (hemorrhagic) (idiopathic) (nonepidemic) (spurious) (subacute) G04.90
  ICD-10-CM Diagnosis Code G04.90

  Encephalitis and encephalomyelitis, unspecified

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

  Applicable To

  • Ventriculitis (cerebral) NOS
  • in (due to)
    • toxoplasmosis (acquired) B58.2
• Meningoencephalitis G04.90
  - see also Encephalitis
  ICD-10-CM Diagnosis Code G04.90

  Encephalitis and encephalomyelitis, unspecified

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

  Applicable To

  • Ventriculitis (cerebral) NOS
  • in (due to)
    • toxoplasmosis (acquired) B58.2
• Meningoencephalomyelitis - see also Meningoencephalitis
  • due to
    • Toxoplasma or toxoplasmosis (acquired) B58.2
• Toxoplasma, toxoplasmosis (acquired) B58.9
  ICD-10-CM Diagnosis Code B58.9

  Toxoplasmosis, unspecified

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • with
    • meningoencephalitis B58.2

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.