F21 ICD-10-CA code: Schizotypal disorder
F21 is the ICD-10-CA code for “Schizotypal disorder” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
F21Schizotypal disorder
ICD-10-CA · Canada
Index terms
Entries in CIHI’s alphabetical index that lead to F21. Searching the index by the condition the note names is how coders reach this code.
- Reaction, schizophrenic, latent
- Schizophrenia, schizophrenic, latent
- Disorder (of), personality, schizotypal
- Schizophrenia, schizophrenic, incipient
- Schizophrenia, schizophrenic, prodromal
- Disorder (of), schizotypal (personality)
- Schizophrenia, schizophrenic, borderline
- Schizophrenia, schizophrenic, prepsychotic
- Schizophrenia, schizophrenic, pseudoneurotic
- Schizophrenia, schizophrenic, pseudopsychopathic
Notes for F21
As CIHI prints them, with any note F21 takes from the headings above it.
Includes
- Latent schizophrenic reactionSchizophrenia:• borderline• latent• prepsychotic• prodromal• pseudoneurotic• pseudopsychopathicSchizotypal personality disorder
- Disorders of psychological developmentFrom Chapter 5: Mental and behavioural disorders (F00-F99)
Excludes
Conditions classified elsewhere.
- Asperger's syndrome (F84.5)schizoid personality disorder (F60.1)
- Symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)From Chapter 5: Mental and behavioural disorders (F00-F99)
Note
- A disorder characterized by eccentric behaviour and anomalies of thinking and affect which resemble those seen in schizophrenia, though no definite and characteristic schizophrenic anomalies occur at any stage. The symptoms may include a cold or inappropriate affect; anhedonia; odd or eccentric behaviour; a tendency to social withdrawal; paranoid or bizarre ideas not amounting to true delusions; obsessive ruminations; thought disorder and perceptual disturbances; occasional transient quasi-psychotic episodes with intense illusions, auditory or other hallucinations, and delusion-like ideas, usually occurring without external provocation. There is no definite onset and evolution and course are usually those of a personality disorder.
- 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 F21 sits
- 1ChapterChapter 5: Mental and behavioural disorders (F00-F99)
- 2Block F20-F29Schizophrenia, schizotypal and delusional disorders
- 3Valid code F21Schizotypal disorder
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 F21 mean?
F21 is the ICD-10-CA code for “Schizotypal disorder” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is F21 in ICD-10-CA?
F21 sits under F20-F29 Schizophrenia, schizotypal and delusional disorders, within Chapter 5: Mental and behavioural disorders (F00-F99).
What coding notes apply to F21?
ICD-10-CA lists Note, Includes, Excludes notes for F21, 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.