Other (or Unknown) Substance Intoxication 581
Other (or Unknown) Substance Intoxication
Diagnostic Criteria
A. The development of a reversible substance-specific syndrome attributable to recent in-
gestion of (or exposure to) a substance that is not listed elsewhere or is unknown.
B. Clinically significant problematic behavioral or psychological changes that are attribut-
able to the effect of the substance on the central nervous system (e.g., impaired motor
coordination, psychomotor agitation or retardation, euphoria, anxiety, belligerence,
mood lability, cognitive impairment, impaired judgment, social withdrawal) and develop
during, or shortly after, use of the substance.
C. The signs or symptoms are not attributable to another medical condition and are not bet-
ter explained by another mental disorder, in cluding intoxication with another substance.
Coding note:  The ICD-9-CM code is 292.89. The ICD-10-CM code depends on whether
there is a comorbid other (or unknown) substance use disorder involving the same sub-
stance. If a mild other (or unknown) substance use disorder is comorbid, the ICD-10-CM
code is F19.129,  and if a moderate or severe other (or unknown) substance use disorder is
comorbid, the ICD-10-CM code is F19.229. If there is no comorbid other (or unknown) sub-
stance use disorder involving the same substance, then the ICD-10-CM code is F19.929.
Note:  For information on Risk and Prognostic Factors, Culture-Related Diagnostic Issues,
and Diagnostic Markers, see the correspondin g sections in other (or unknown) substance
use disorder.
Diagnostic Features