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ICD-10-CM Current in FY 2027

F09

Unspecified mental disorder due to known physiological condition

Release
FY 2027
Effective

Official Coding Notes

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

Inclusion Terms

Mental disorder NOS due to known physiological condition

Inclusion Terms

Organic brain syndrome NOS

Inclusion Terms

Organic mental disorder NOS

Inclusion Terms

Organic psychosis NOS

Inclusion Terms

Symptomatic psychosis NOS

Excludes1

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

Excludes1

psychosis NOS ( F29 )

Code First

the underlying physiological condition

Version History

How F09 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Unspecified mental disorder due to known physiological condition

  2. FY 2026 Effective

    Unchanged

    Unspecified mental disorder due to known physiological condition

Codes whose official notes reference F09

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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