ICD-10-CM > F01-F99 > F20-F29 > F20 F20 Schizophrenia Non-Billable/Non-Specific Use Additional code, if applicable, to identify:other specified cognitive deficit (R41.84-) Type 1 Excludes brief psychotic disorder (F23)cyclic schizophrenia (F25.0)mood [affective] disorders with psychotic symptoms (F30.2, F31.2, F31.5, F31.64, F32.3, F33.3)schizoaffective disorder (F25.-)schizophrenic reaction NOS (F23) Type 2 Excludes schizophrenic reaction in:alcoholism (F10.15-, F10.25-, F10.95-)brain disease (F06.2)epilepsy (F06.2)psychoactive drug use (F11-F19 with .15. .25, .95)schizotypal disorder (F21) Codes F20.0Paranoid schizophreniaF20.1Disorganized schizophreniaF20.2Catatonic schizophreniaF20.3Undifferentiated schizophreniaF20.5Residual schizophreniaF20.8Other schizophreniaF20.81Schizophreniform disorderF20.89Other schizophreniaF20.9Schizophrenia, unspecified