F21 – Schizotypal disorder
ICD-10-CM 2027 diagnosis code · Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders
ICD-10-CM code
F21
- Code
F21(claims format:F21)- Description
- Schizotypal disorder
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 5. Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
- Block
- F20-F29 Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders
Notes for F21
Applicable to:
- Borderline schizophrenia
- Latent schizophrenia
- Latent schizophrenic reaction
- Prepsychotic schizophrenia
- Prodromal schizophrenia
- Pseudoneurotic schizophrenia
- Pseudopsychopathic schizophrenia
- Schizotypal personality disorder
Index terms for F21
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Disorder, schizotypal
- Reaction, schizophrenic, latent
- Disorder, personality, schizotypal
- Schizophrenia, schizophrenic, latent
- Schizophrenia, schizophrenic, incipient
- Schizophrenia, schizophrenic, prodromal
- Schizophrenia, schizophrenic, borderline
- Schizophrenia, schizophrenic, prepsychotic
- Schizophrenia, schizophrenic, pseudoneurotic
- Schizophrenia, schizophrenic, pseudopsychopathic
Frequently asked questions
What is ICD-10 code F21?
F21 is the ICD-10-CM code for schizotypal disorder, in the block F20-F29 (Schizophrenia, schizotypal, delusional, and other non-mood psychotic disorders).
Is F21 a billable code?
Yes. F21 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.