ICD-10: F05

Delirium due to known physiological condition

Clinical Information

Inclusion Terms

  • Acute or subacute infective psychosis
  • Delirium of mixed etiology
  • Acute or subacute psycho-organic syndrome
  • Delirium superimposed on dementia
  • Acute or subacute confusional state (nonalcoholic)
  • Acute or subacute organic reaction
  • Sundowning
  • Acute or subacute brain syndrome

Coding Guidelines

Code First

  • dementia (F03.9-)
  • the underlying physiological condition, such as:

Excludes 1

  • delirium NOS (R41.0)

Excludes 2

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

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