Addiction Severity Index

Original/alternative title:  ASI


Clinician-administered face-to-face structured interview. 161-item multidimensional clinical and research instrument.

Designed to provide basic diagnostic information on a client prior, during and after treatment for substance use-related problems, and for the assessment of change in client status and treatment outcome. The ASI can be used for different purposes in assessing substance abuse clients: a) to assess the problem severity of the interviewee, and b) for periodic repeated administrations to monitor and quantify change in problems commonly associated to substance abuse.

Additional information

McLellan AT, Luborsky L, Woody GE, O’Brien CP. An improved diagnostic evaluation instrument for substance abuse patients. The Addiction Severity Index. Journal of Nervous and Mental Disorders 1980;168(1):26-33.