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;
(g) Schizophreniform Disorder; and
(h) Substance/Medication-Induced Psychotic Disorder.
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