When does assessment of a client with co-occurring disorders occur?

• A. Only at intake
• B. After detoxification
• C. Regularly over time
• D. Regularly during treatment planning

Answer: (D)

Ongoing, regular assessment is essential because co-occurring disorders can change and influence what interventions are needed. Substance use and mental health symptoms interact in dynamic ways, so information gathered at intake or after detox may not fully capture current risks, functioning, or treatment needs as progress occurs. By continually reassessing and updating the assessment during treatment planning, clinicians ensure the plan stays aligned with the client’s present state, adjusts for new symptoms or side effects, tracks progress, and modifies goals and interventions accordingly. Initial assessments set the foundation, but the treatment plan should be guided by fresh information gathered over time, integrating both substance use and mental health considerations to optimize care.