F20 vs F23
F20 (Schizophrenia) compared with F23 (Brief psychotic disorder), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. F20 carries an Excludes1 note covering F23: “brief psychotic disorder (F23)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. F20 carries an Excludes1 note covering F23: “schizophrenic reaction NOS (F23)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| F20Schizophrenia | F23Brief psychotic disorder | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | F01-F99 — Mental, Behavioral and Neurodevelopmental Disorders (F01-F99) | F01-F99 — Mental, Behavioral and Neurodevelopmental Disorders (F01-F99) |
| Definition | Schizophrenia is a non-billable ICD-10-CM category code (F20). | Brief psychotic disorder is a billable ICD-10-CM diagnosis code (F23). |
| Includes | — | Paranoid reaction Psychogenic paranoid psychosis |
| Use additional code | code, if applicable, to identify: other specified cognitive deficit (R41.84-) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources