F42.2 ICD-10-CA code: Mixed obsessional thoughts and acts
F42.2 is the ICD-10-CA code for “Mixed obsessional thoughts and acts” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
F42.2Mixed obsessional thoughts and acts
ICD-10-CA · Canada · Also written F422
Index terms
Entries in CIHI’s alphabetical index that lead to F42.2. Searching the index by the condition the note names is how coders reach this code.
- State (of), obsessional, mixed with compulsive acts
- State (of), compulsive, mixed with obsessional thoughts
- Obsession, obsessional, state, mixed with compulsive acts
- Compulsion, compulsive, states, mixed with obsessional thoughts
- Disorder (of), obsessive compulsive, mixed obsessions and compulsions
Notes for F42.2
As CIHI prints them, with any note F42.2 takes from the headings above it.
Includes
- Anankastic neurosisobsessive-compulsive neurosisFrom F42 Obsessive-compulsive disorder
- Disorders of psychological developmentFrom Chapter 5: Mental and behavioural disorders (F00-F99)
Excludes
Conditions classified elsewhere.
- Obsessive-compulsive:• behaviour (R46.80)• personality (disorder) (F60.5)From F42 Obsessive-compulsive disorder
- When associated with conduct disorder in F91.- (F92.8)From F40-F48 Neurotic, stress-related and somatoform disorders
- Symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)From Chapter 5: Mental and behavioural disorders (F00-F99)
Note
- The essential feature is recurrent obsessional thoughts or compulsive acts. Obsessional thoughts are ideas, images, or impulses that enter the patient's mind again and again in a stereotyped form. They are almost invariably distressing and the patient often tries, unsuccessfully, to resist them. They are, however, recognized as his or her own thoughts, even though they are involuntary and often repugnant. Compulsive acts or rituals are stereotyped behaviours that are repeated again and again. They are not inherently enjoyable, nor do they result in the completion of inherently useful tasks. Their function is to prevent some objectively unlikely event, often involving harm to or caused by the patient, which he or she fears might otherwise occur. Usually, this behaviour is recognized by the patient as pointless or ineffectual and repeated attempts are made to resist. Anxiety is almost invariably present. If compulsive acts are resisted the anxiety gets worse.From F42 Obsessive-compulsive disorder
Where F42.2 sits
- 1ChapterChapter 5: Mental and behavioural disorders (F00-F99)
- 2Block F40-F48Neurotic, stress-related and somatoform disorders
- 3Category F42Obsessive-compulsive disorder
- 4Valid code F42.2Mixed obsessional thoughts and acts
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code F42.2 mean?
F42.2 is the ICD-10-CA code for “Mixed obsessional thoughts and acts” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is F42.2 in ICD-10-CA?
F42.2 sits under F42 Obsessive-compulsive disorder, within F40-F48 Neurotic, stress-related and somatoform disorders, within Chapter 5: Mental and behavioural disorders (F00-F99).
What coding notes apply to F42.2?
ICD-10-CA lists Note, Includes, Excludes notes for F42.2, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.