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ICD-10-CM Current in FY 2027

F05

Delirium due to known physiological condition

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

Official Coding Notes

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

Inclusion Terms

Acute or subacute brain syndrome

Inclusion Terms

Acute or subacute confusional state (nonalcoholic)

Inclusion Terms

Acute or subacute infective psychosis

Inclusion Terms

Acute or subacute organic reaction

Inclusion Terms

Acute or subacute psycho-organic syndrome

Inclusion Terms

Delirium of mixed etiology

Inclusion Terms

Delirium superimposed on dementia

Inclusion Terms

Sundowning

Excludes1

delirium NOS ( R41.0 )

Excludes2

delirium tremens alcohol-induced or unspecified ( F10.231 , F10.921 )

Code First

the underlying physiological condition, such as:

Code First

dementia ( F03.9- )

Version History

How F05 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Delirium due to known physiological condition

  2. FY 2026 Effective

    Unchanged

    Delirium due to known physiological condition

Related Codes

Codes whose official notes reference F05

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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