38 CFR 3.384: Psychosis.

For purposes of this part, the term “psychosis” means any of the following disorders listed in the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) (see § 4.125 for availability information):

(a) Brief Psychotic Disorder;

(b) Delusional Disorder;

(c) Psychotic Disorder Due to Another Medical Condition;

(d) Other Specified Schizophrenia Spectrum and Other Psychotic Disorder;

(e) Schizoaffective Disorder;

(f) Schizophrenia;

(g) Schizophreniform Disorder; and

(h) Substance/Medication-Induced Psychotic Disorder.