ICD-10-CM code F23 describes brief psychotic disorder. Sudden onset of psychotic symptoms lasting less than one month with full return to premorbid functioning. It is a billable, specific code valid for claim submission. It is grouped under the “Schizophrenia Spectrum & Psychotic Disorders” section of the mental, behavioral, and neurodevelopmental disorders chapter.
When to use F23
Use this group for schizophrenia, schizoaffective disorder, delusional disorder, brief psychotic disorder, and other non-substance psychoses. Choose the subtype and current-state modifiers that the documentation supports. For F23 specifically, sudden onset of psychotic symptoms lasting less than one month with full return to premorbid functioning.
Documentation & billing
Document the subtype, the presence of psychotic features, and the current episode state. Confirm the psychosis is not substance-induced or due to a medical condition before assigning an F20–F29 code.
Common pitfalls
- Using unspecified psychosis (F29) when criteria for a specific disorder are met.
- Failing to distinguish schizoaffective disorder from schizophrenia with mood symptoms.
- Coding substance-induced or medical-condition psychosis under F20–F29.
Common search terms for F23
Clinicians often look up F23 using plain-language terms. This code maps to:
Frequently asked questions
What is ICD-10-CM code F23?
Brief psychotic disorder. Sudden onset of psychotic symptoms lasting less than one month with full return to premorbid functioning.
Is F23 a billable ICD-10-CM code?
Yes. F23 (Brief psychotic disorder) is a billable, specific ICD-10-CM code that can be reported on a claim. Confirm the current official descriptor against the CDC code set and your payer’s policies before submitting.
What should I document to support F23?
Document the subtype, the presence of psychotic features, and the current episode state. Confirm the psychosis is not substance-induced or due to a medical condition before assigning an F20–F29 code.