or severe substance use disorder, or no substance use disorder, can be diagnosed. Behav-
ioral disturbance cannot be coded but should still be indicated in writing.
ICD-10-CM
ICD-9-CMWith use 
disorder, 
mildWith use 
disorder, 
moderate or 
severeWithout use 
disorder
Alcohol (major neurocognitive 
disorder), nonamnestic- 
confabulatory type291.2 NA F10.27 F10.97
Alcohol (major neurocognitive 
disorder), amnestic- 
confabulatory type291.1 NA F10.26 F10.96
Alcohol (mild neurocognitive 
disorder)291.89 NA F10.288 F10.988
Inhalant (major neurocognitive 
disorder)292.82 F18.17 F18.27 F18.97
Inhalant (mild neurocognitive 
disorder)292.89 F18.188 F18.288 F18.988
Sedative, hypnotic, or anxiolytic 
(major neurocognitive disorder)292.82 NA F13.27 F13.97
Sedative, hypnotic, or anxiolytic 
(mild neurocognitive disorder)292.89 NA F13.288 F13.988
Other (or unknown) substance 
(major neurocognitive disorder)292.82 F19.17 F19.27 F19.97
Other (or unknown) substance 
(mild neurocognitive disorder)292.89 F19.188 F19.288 F19.988