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ICD-10-CM Current in FY 2027

G31

Other degenerative diseases of nervous system, not elsewhere classified

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

Official Coding Notes

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

Excludes2

Reye's syndrome ( G93.7 )

Use Additional Code

code, if applicable, for codes G31.0-G31.83, G31.85-G31.9, to identify:

Use Additional Code

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

Use Additional Code

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

Use Additional Code

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

Use Additional Code

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

Use Additional Code

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

Use Additional Code

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

More Specific Codes

5 codes under G31

Version History

How G31 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Other degenerative diseases of nervous system, not elsewhere classified

  2. FY 2026 Effective

    Unchanged

    Other degenerative diseases of nervous system, not elsewhere classified

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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