F20 ICD-10-CA category: Schizophrenia
F20 isn’t a code on its own. Choose one of the 9 codes beneath it, the one the documentation supports.
Official description
F20Schizophrenia
ICD-10-CA · Canada
Codes in F20
F20 isn’t a code on its own. Open the code that matches what the note documents.
Notes for F20
As CIHI prints them, with any note F20 takes from the headings above it.
Includes
- Disorders of psychological developmentFrom Chapter 5: Mental and behavioural disorders (F00-F99)
Excludes
Conditions classified elsewhere.
- Schizophrenia:• acute (undifferentiated) (F23.2)• cyclic (F25.2)schizophrenic reaction (F23.2)schizotypal disorder (F21)
- Symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)From Chapter 5: Mental and behavioural disorders (F00-F99)
Note
- The schizophrenic disorders are characterized in general by fundamental and characteristic distortions of thinking and perception, and affects that are inappropriate or blunted. Clear consciousness and intellectual capacity are usually maintained although certain cognitive deficits may evolve in the course of time. The most important psychopathological phenomena include thought echo; thought insertion or withdrawal; thought broadcasting; delusional perception and delusions of control; influence or passivity; hallucinatory voices commenting or discussing the patient in the third person; thought disorders and negative symptoms.The course of schizophrenic disorders can be either continuous, or episodic with progressive or stable deficit, or there can be one or more episodes with complete or incomplete remission. The diagnosis of schizophrenia should not be made in the presence of extensive depressive or manic symptoms unless it is clear that schizophrenic symptoms antedate the affective disturbance. Nor should schizophrenia be diagnosed in the presence of overt brain disease or during states of drug intoxication or withdrawal. Similar disorders developing in the presence of epilepsy or other brain disease should be classified under F06.2, and those induced by psychoactive substances under F10-F19 with common fourth character .5.
- This block brings together schizophrenia, as the most important member of the group, schizotypal disorder, persistent delusional disorders, and a larger group of acute and transient psychotic disorders. Schizoaffective disorders have been retained here in spite of their controversial nature.From F20-F29 Schizophrenia, schizotypal and delusional disorders
Where F20 sits
- 1ChapterChapter 5: Mental and behavioural disorders (F00-F99)
- 2Block F20-F29Schizophrenia, schizotypal and delusional disorders
- 3Category F20Schizophrenia
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
Is F20 a valid ICD-10-CA code?
No. F20 (Schizophrenia) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 9 codes; record the one the documentation supports.
Where is F20 in ICD-10-CA?
F20 sits under F20-F29 Schizophrenia, schizotypal and delusional disorders, within Chapter 5: Mental and behavioural disorders (F00-F99).
What coding notes apply to F20?
ICD-10-CA lists Note, Excludes, Includes notes for F20, 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.