F20.5 ICD-10-CA code: Residual schizophrenia
F20.5 is the ICD-10-CA code for “Residual schizophrenia” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
F20.5Residual schizophrenia
ICD-10-CA · Canada · Also written F205
Index terms
Entries in CIHI’s alphabetical index that lead to F20.5. Searching the index by the condition the note names is how coders reach this code.
- Restzustand (schizophrenic)
- Residual, state, schizophrenic
- State (of), residual schizophrenic
- Schizophrenia, schizophrenic, Restzustand
- Schizophrenia, schizophrenic, negative type
- Schizophrenia, schizophrenic, residual (state) (type)
- Schizophrenia, schizophrenic, chronic undifferentiated
- Schizophrenia, schizophrenic, undifferentiated (type), chronic
Notes for F20.5
As CIHI prints them, with any note F20.5 takes from the headings above it.
Includes
- Chronic undifferentiated schizophreniaRestzustand (schizophrenic)Schizophrenic residual state
- 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)From F20 Schizophrenia
- Symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)From Chapter 5: Mental and behavioural disorders (F00-F99)
Note
- A chronic stage in the development of a schizophrenic illness in which there has been a clear progression from an early stage to a later stage characterized by long- term, though not necessarily irreversible, "negative" symptoms, e.g. psychomotor slowing; underactivity; blunting of affect; passivity and lack of initiative; poverty of quantity or content of speech; poor nonverbal communication by facial expression, eye contact, voice modulation and posture; poor self-care and social performance.
- 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.From F20 Schizophrenia
- 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 F20.5 sits
- 1ChapterChapter 5: Mental and behavioural disorders (F00-F99)
- 2Block F20-F29Schizophrenia, schizotypal and delusional disorders
- 3Category F20Schizophrenia
- 4Valid code F20.5Residual schizophrenia
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 F20.5 mean?
F20.5 is the ICD-10-CA code for “Residual schizophrenia” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is F20.5 in ICD-10-CA?
F20.5 sits under F20 Schizophrenia, within F20-F29 Schizophrenia, schizotypal and delusional disorders, within Chapter 5: Mental and behavioural disorders (F00-F99).
What coding notes apply to F20.5?
ICD-10-CA lists Note, Includes, Excludes notes for F20.5, 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.