ing procedures for ICD-10-CM, which combine the substance-induced disorder and
substance use disorder into a single code, for ICD-9-CM a separate diagnostic code is
given for the substance use disorder. For exampl e, in the case of re petitive behaviors oc-
curring during intoxica tion in a man with a severe coca ine use disorder, the diagnosis is
292.89 cocaine-induced obsessive-compulsive and related disorder, with onset during in-
toxication. An additional diagnosis of 304.20 severe cocaine use disorder is also given.
When more than one substance is judged to play a significant role in the development of
the obsessive-compulsive and related disord er, each should be listed separately.
ICD-10-CM. The name of the substance/medication-induced obsessive-compulsive and re-
lated disorder begins with the specific substance (e.g., cocaine) that is presumed to be causing
the obsessive-compulsive and related symptoms. Th e diagnostic code is selected from the ta-
ble included in the criteria set,  which is based on the drug clas s and presence or absence of a
comorbid substance use disorder . For substances that do no t fit into any of the classes,
the code for “other substance” with no comorb id substance use should be used; and in cases in
which a substance is judged to be an etiological fa ctor but the specific class of substance is un-
known, the category “unknown substance” with  no comorbid substance use should be used.ICD-10-CM
ICD-9-CMWith use 
disorder, 
mildWith use 
disorder, 
moderate 
or severeWithout 
use 
disorder
Amphetamine (or other