Delirium due to known physiological condition F05

The ICD10 code for the diagnosis "Delirium due to known physiological condition" is "F05". F05 is a VALID/BILLABLE ICD10 code, i.e it is valid for submission for HIPAA-covered transactions.

  • F05 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM F05 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of F05 - other international versions of ICD-10 F05 may differ.
Applicable To:
  • Acute or subacute brain syndrome
  • Acute or subacute confusional state (nonalcoholic)
  • Acute or subacute infective psychosis
  • Acute or subacute organic reaction
  • Acute or subacute psycho-organic syndrome
  • Delirium of mixed etiology
  • Delirium superimposed on dementia
  • Sundowning
Code First:
  • the underlying physiological condition
Type 1 Excludes: Type 2 Excludes:

Codes: = Billable

  • F05 Delirium due to known physiological condition

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.