Abstract
A large proportion of patients with substance use disorders have clinical comorbidities, either medical or psychiatric. An initial assessment is necessary initially for prompt identification and management of any psychiatric or medical emergency, and thereafter a more detailed assessment for the comprehensive understanding of the individual. This should be done keeping in mind the goals of both immediate and long term assessment so that a comprehensive but individualized, context and culture sensitive, reality based, recovery-oriented management plan can be formulated. Assessment should consist of not only history-taking, physical and mental status examination but also laboratory and instrument based assessment as needed. During assessment, collateral reports and past medical records are valuable additions along with self-report. Since substance use disorders influence various aspects of daily life, hence medical, social, occupational, religious, spiritual, financial and legal aspects should be evaluated. Overall, the assessment needs to be diagnosis and management focused, covering the various bio-psycho-social domains relevant to the individual.