Terry Gorski has a nice summary of substance use disorders in the DSM-5.
Here’s his analysis at the end of the post:
The DSM 5 is criticized for combining the the DSM IV categories of substance dependence (addiction marked by a pattern of compulsive use or loss of control) and substance abuse disorders (using in a manner that causes problems but does not have a pattern of compulsive use). The 2011 definition of addiction by the American Society of Addiction Medicine (ASAM) is consistent with DSM IV but not DSM 5.
The DSM IV, like the ASAM definition is based upon the idea that there is a DIFFERENCE IN KIND between substance abuse and dependence/addiction.
The DSM 5 is inconsistent with the ASAM definition because it is based upon the idea that there is only A DIFFERENCE IN DEGREE between abuse and addiction based upon the number of symptoms.
This is a critical difference in the underlying theory of addiction between the DSM IV and DSM 5 and a break in the progressive development of the fundamental concept if addiction which began with the DSM III.
- Addiction definition in flux (yaledailynews.com)