Start with the verified Dual Diagnosis scope
The dual diagnosis program explains the confirmed program category. MVBH admissions is the route for questions about how group therapy may be discussed within that scope. The supplied facts verify integrated care, not a particular group structure.
The confirmed scope provides a program-level starting point. MVBH lists PHP, IOP, OP, Virtual IOP, and Dual Diagnosis among its programs. Its Dual Diagnosis treatment in Amesbury, Massachusetts, provides integrated care for adults with co-occurring mental health and substance use disorders.
That description supports considering this route when the core question involves both categories of concern. It does not establish that a PTSD and opioid use group exists. It also does not describe group topics, leadership, schedules, session size, participation expectations, or how group work relates to other services.
For a useful program inquiry, name both the subject and the format. Ask how MVBH discusses group therapy within Dual Diagnosis and which program category supplies the context. This keeps the conversation anchored to verified scope without assuming a specific service arrangement.