Understanding the full scope of substance use, including patterns, consequences, and warning signs, is a critical first step in treatment planning. The DSM-5-TR (American Psychiatric Association, 2022) defines substance use disorders along a severity continuum based on the number of diagnostic criteria met. This inventory draws on validated screening constructs from the AUDIT, DAST-10, and NIDA Quick Screen to help clinicians and clients collaboratively assess use patterns and their impact across major life domains. Honest self-report, even approximate, provides valuable clinical information. This is not a diagnostic instrument but a structured conversation starter.