2016201720182019202020212022202320242025Billable/Specific Code
- F05 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 edition of ICD-10-CM F05 became effective on October 1, 2022.
- This is the American ICD-10-CM version of F05 – other international versions of ICD-10 F05 may differ.
ICD-10-CM F05 is grouped within Diagnostic Related Group(s):
- 880 Acute adjustment reaction and psychosocial dysfunction
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
Type 1 Excludes
- delirium NOS (R41.0)
Type 2 Excludes
- delirium tremens alcohol-induced or unspecified (F10.231, F10.921)
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2016 (effective 10/1/2015): No change
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- 2024 (effective 10/1/2023): No change
- 2025 (effective 10/1/2024): No change
Diagnosis Index entries containing back-references to F05:
- epileptic > Confusion, confused R41.0
- general medical condition > due to (secondary to)
- multiple etiologies > due to (secondary to)
- postprocedural (postoperative) > Delirium, delirious (acute or subacute) (not alcohol- or drug-induced) (with dementia) R41.0
- puerperal > Delirium, delirious (acute or subacute) (not alcohol- or drug-induced) (with dementia) R41.0
- with acute confusional state > senile F03
- twilight > Epilepsy, epileptic, epilepsia (attack) (cerebral) (convulsion) (fit) (seizure) G40.909
- acute or subacute > confusional F28
- acute or subacute > confusional F29
- infective (acute) (subacute) > Psychosis, psychotic F29
- acute or subacute > endocrine or metabolic F06.8
- epilepsy transient (acute) > due to or associated with
- acute or subacute > brain (intracranial) F06.8
- acute or subacute > trauma, brain (birth) (from electric current) (surgical) F06.8
- acute or subacute > infective F06.8
- acute or subacute > post-traumatic F06.8
- delirium NEC > Puerperal, puerperium (complicated by, complications)
- with > Senile, senility R41.81
- acute confusional state > with F05
- senility or dementia > with F01.50
- epileptic > confusional (psychogenic) F44.89
- twilight > State (of)
- epileptic > twilight F05
- acute or subacute > psycho-organic (nonpsychotic severity) F07.9
- epileptic > Twilight state