1. ICD-10-CM Codes
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2. A00-B99 Certain infectious and parasitic diseases
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3. B35-B49 Mycoses
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4. B43- Chromomycosis and pheomycotic abscess
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5. 2021 ICD-10-CM Diagnosis Code B43.1

2021 ICD-10-CM Diagnosis Code B43.1

Pheomycotic brain abscess

2016 2017 2018 2019 2020 2021 Billable/Specific Code

• B43.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2021 edition of ICD-10-CM B43.1 became effective on October 1, 2020.
• This is the American ICD-10-CM version of B43.1 - other international versions of ICD-10 B43.1 may differ.

• Pheohyphomycotic brain abscess

• 867 Other infectious and parasitic diseases diagnoses with mcc
• 868 Other infectious and parasitic diseases diagnoses with cc
• 869 Other infectious and parasitic diseases diagnoses without cc/mcc

Convert B43.1 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

• Type 1 Excludes: G07
  ICD-10-CM Diagnosis Code G07

  Intracranial and intraspinal abscess and granuloma in diseases classified elsewhere

  2016 2017 2018 2019 2020 2021 Billable/Specific Code Manifestation Code

  Code First

  • underlying disease, such as:
  • schistosomiasis granuloma of brain (B65.-)

  Type 1 Excludes

  • abscess of brain:
  • amebic (A06.6)
  • chromomycotic (B43.1)
  • gonococcal (A54.82)
  • tuberculous (A17.81)
  • tuberculoma of meninges (A17.1)

• Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) L02.91
  ICD-10-CM Diagnosis Code L02.91

  Cutaneous abscess, unspecified

  2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • brain (any part) (cystic) (otogenic) G06.0
    ICD-10-CM Diagnosis Code G06.0

    Intracranial abscess and granuloma

    2016 2017 2018 2019 2020 2021 Billable/Specific Code

    Applicable To

    • Brain [any part] abscess (embolic)
    • Cerebellar abscess (embolic)
    • Cerebral abscess (embolic)
    • Intracranial epidural abscess or granuloma
    • Intracranial extradural abscess or granuloma
    • Intracranial subdural abscess or granuloma
    • Otogenic abscess (embolic)

    Type 1 Excludes

    • tuberculous intracranial abscess and granuloma (A17.81)
    • pheomycotic B43.1 (chromomycotic)
• Chromomycosis B43.9
  ICD-10-CM Diagnosis Code B43.9

  Chromomycosis, unspecified

  2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • brain abscess B43.1
  • cerebral B43.1
• Infection, infected, infective (opportunistic) B99.9
  ICD-10-CM Diagnosis Code B99.9

  Unspecified infectious disease

  2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • Cladosporium
    • bantianum B43.1 (brain abscess)
    • trichoides B43.1 (brain abscess)

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