Schizotypal disorder (F21) ICD-10-CM
The F21 code range covers schizotypal disorder with 1 ICD-10-CM diagnosis codes. 1 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Borderline schizophrenia
- Latent schizophrenia
- Latent schizophrenic reaction
- Prepsychotic schizophrenia
- Prodromal schizophrenia
- Pseudoneurotic schizophrenia
- Pseudopsychopathic schizophrenia
- Schizotypal personality disorder
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Codes in the F21 Range 1 codes · 1 billable
- F21 Schizotypal disorder
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the F21 range.
Schizotypal Personality Disorder
A disorder characterized by an enduring pattern of inability to establish close relationships coupled with cognitive or perceptual distortions, odd beliefs and speech, and eccentric behavior and appearance.
About the F21 Code Range
Schizotypal personality disorder involves lasting difficulty forming close relationships, distorted thinking or perception, unusual beliefs and speech, and eccentric behavior and appearance.
F21 is the schizotypal disorder category within the group for schizophrenia, delusional disorders, and other non-mood psychotic disorders.
Questions About This Page
How many billable codes are in the F21 range?
Of the 1 codes in this range, 1 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the F21 range classify?
The range classifies schizotypal disorder. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
