history, physical examination, or laboratory findings that the disturbance is a physiologi-
cal consequence of an underlying medical condition, substance intoxication or with-
drawal, use of a medication, or a toxin ex posure, or a combinat ion of these factors
(Criterion E). The etiology should be coded a ccording to the etiologically appropriate sub-
type (i.e., substance or medication intoxica tion, substance withdr awal, another medical