F23 Brief psychotic disorder

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Paranoid reaction
• Psychogenic paranoid psychosis

Excludes2 (not included here)

• mood [affective] disorders with psychotic symptoms (F30.2, F31.2, F31.5, F31.64, F32.3, F33.3)

Applies from F23 Brief psychotic disorder

Applicable to

• Paranoid reaction
• Psychogenic paranoid psychosis

Excludes2 (not included here)

• mood [affective] disorders with psychotic symptoms (F30.2, F31.2, F31.5, F31.64, F32.3, F33.3)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 152 — Psychosis, Except Schizophrenia
• RxHCC V08: HCC 130 — Schizophrenia and Other Psychosis
• ESRD V24: HCC 58

MS-DRG index

Defines the logic of DRG(s) 885 in MDC 19.

Approximate ICD-9-CM (GEMs)

• 298.3 Acute paranoid reaction (approximate)
• 298.4 Psychogenic paranoid psychosis (approximate)
• 298.8 Other and unspecified reactive psychosis (approximate)

Code annotations containing back-references to F23

Back-references to F23

• Type 2 Excludes: F06.2 Psychotic disorder with delusions due to known physiological condition ("brief psychotic disorder (F23)")
• Type 1 Excludes: F20 Schizophrenia ("brief psychotic disorder (F23)")
• Type 1 Excludes: F20 Schizophrenia ("schizophrenic reaction NOS (F23)")
• Type 1 Excludes: F20.3 Undifferentiated schizophrenia ("acute schizophrenia-like psychotic disorder (F23)")
• Type 2 Excludes: F22 Delusional disorders ("paranoid psychosis, psychogenic (F23)")
• Type 2 Excludes: F22 Delusional disorders ("paranoid reaction (F23)")
• Type 1 Excludes: F53 Mental and behavioral disorders associated with the puerperium, not elsewhere classified ("psychosis in schizophrenia, schizotypal, delusional, and other psychotic disorders (F20-F29)")
• Type 1 Excludes: R44 Other symptoms and signs involving general sensations and perceptions ("hallucinations in schizophrenia, schizotypal and delusional disorders (F20-F29)")
• Type 1 Excludes: R46 Symptoms and signs involving appearance and behavior ("appearance and behavior in schizophrenia, schizotypal and delusional disorders (F20-F29)")

Back-references to F23

• Type 2 Excludes: F06.2 Psychotic disorder with delusions due to known physiological condition ("brief psychotic disorder (F23)")
• Type 1 Excludes: F20 Schizophrenia ("brief psychotic disorder (F23)")
• Type 1 Excludes: F20 Schizophrenia ("schizophrenic reaction NOS (F23)")
• Type 1 Excludes: F20.3 Undifferentiated schizophrenia ("acute schizophrenia-like psychotic disorder (F23)")
• Type 2 Excludes: F22 Delusional disorders ("paranoid psychosis, psychogenic (F23)")
• Type 2 Excludes: F22 Delusional disorders ("paranoid reaction (F23)")
• Type 1 Excludes: F53 Mental and behavioral disorders associated with the puerperium, not elsewhere classified ("psychosis in schizophrenia, schizotypal, delusional, and other psychotic disorders (F20-F29)")
• Type 1 Excludes: R44 Other symptoms and signs involving general sensations and perceptions ("hallucinations in schizophrenia, schizotypal and delusional disorders (F20-F29)")
• Type 1 Excludes: R46 Symptoms and signs involving appearance and behavior ("appearance and behavior in schizophrenia, schizotypal and delusional disorders (F20-F29)")

Diagnosis Index entries for F23

• Attack, attacks › schizophreniform, brief
• Bouffée délirante
• Disorder (of) › psychotic › transient (acute)
• Disorder (of) › schizophreniform › brief
• Episode › psychotic
• Episode › schizophrenic (acute) NEC, brief
• Oneirophrenia
• Paranoid › psychosis (climacteric) (involutional) (menopausal) › psychogenic (acute)
• Paranoid › reaction (acute)
• Psychosis, psychotic › acute (transient)
• Psychosis, psychotic › confusional › reactive
• Psychosis, psychotic › cycloid
• Psychosis, psychotic › episode
• Psychosis, psychotic › paranoid (climacteric) (involutional) (menopausal) › psychogenic (acute)
• Psychosis, psychotic › psychogenic (paranoid)
• Psychosis, psychotic › reactive (brief) (transient) (emotional stress) (psychological trauma)
• Psychosis, psychotic › schizophreniform › brief
• Psychosis, psychotic › schizophreniform › confusional type
• Psychosis, psychotic › situational (reactive)
• Reaction › paranoid (acute)
• Reaction › schizophrenic
• Reaction › schizophrenic › acute (brief) (undifferentiated)
• Reaction › schizophrenic › undifferentiated (acute) (brief)
• Schizophrenia, schizophrenic › acute (brief) (undifferentiated)
• Schizophrenia, schizophrenic › reaction
• State (of) › oneiroid (schizophrenia-like)

Nearby codes

• F23 Brief psychotic disorder (this code)