Substance/Medication-Induced Obsessive-Compulsive and Related Disorder 257
Comorbidity
Excoriation disorder is often accompanied by other mental disorders. Such disorders in-
clude OCD and trichotillomania (hair-pulling disorder), as well as major depressive dis-
order. Repetitive body-focused symptoms othe r than skin picking an d hair pulling (e.g.,
nail biting) occur in many individuals with excoriation disorder and may deserve an ad-
ditional diagnosis of other specified obsessive-compulsive and related disorder (i.e.,
body-focused repetitive behavior disorder).
Substance/Medication-Induced
 Obsessive-Compulsive and Related Disorder
Diagnostic Criteria  
A. Obsessions, compulsions, skin picking, hair pulling, other body-focused repetitive be-
haviors, or other symptoms characteristic of the obsessive-compulsive and related dis-
orders predominate in the clinical picture. 
B. There is evidence from the history, physical examination, or laboratory findings of both
(1) and (2):
1. The symptoms in Criterion A developed during or soon after substance intoxication
or withdrawal or after exposure to a medication.
2. The involved substance/medication is capable of producing the symptoms in Crite-
rion A.
C. The disturbance is not better explained by an obsessive-compulsive and related disor-
der that is not substance/medication-induced. Such evidence of an independent ob-
sessive-compulsive and related disorder could include the following:
The symptoms precede the onset of the substance/medication use; the symptoms
persist for a substantial period of time (e.g., about 1 month) after the cessation of acute
withdrawal or severe intoxication; or there is other evidence suggesting the exis-