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ICD-10-CM Current in FY 2027

A81

Atypical virus infections of central nervous system

Release
FY 2027
Effective
Official source (opens in a new tab)

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files.

Includes

diseases of the central nervous system caused by prions

Use Additional Code

code, if applicable, to identify:

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dementia with anxiety ( F02.84 , F02.A4 , F02.B4 , F02.C4 )

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dementia with behavioral disturbance ( F02.81- , F02.A1- , F02.B1- , F02.C1- )

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dementia with mood disturbance ( F02.83 , F02.A3 , F02.B3 , F02.C3 )

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dementia with psychotic disturbance ( F02.82 , F02.A2 , F02.B2 , F02.C2 )

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dementia without behavioral disturbance ( F02.80 , F02.A0 , F02.B0 , F02.C0 )

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mild neurocognitive disorder due to known physiological condition ( F06.7- )

More Specific Codes

5 codes under A81

Version History

How A81 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Atypical virus infections of central nervous system

  2. FY 2026 Effective

    Unchanged

    Atypical virus infections of central nervous system

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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