Dual Diagnosis addresses co-occurring disorders — the presence of both a substance use disorder and a mental health disorder in the same person. The course covers how the two interact, why treating either in isolation tends to fail, how assessment distinguishes substance-induced symptoms from an independent psychiatric condition, and what integrated treatment actually looks like in practice.
Within the SCNS taxonomy, HUS is the Human Services prefix. The course sits in an Addiction Studies college credit certificate or a Human Services A.S., after the introductory and chemical dependency coursework — this repository carries HUS1001 Introduction to Human Services, HUS1400 Chemical Dependency, and HUS2500 Ethics in Human Services alongside it. It appears at approximately four Florida institutions, including Palm Beach State College, Pasco-Hernando State College, and St. Petersburg College.
The subject matters more than its position in the curriculum suggests. Co-occurring disorders are not an edge case: a substantial majority of people entering substance use treatment have a co-occurring mental health condition, and a large share of people in mental health treatment have a substance use disorder. A practitioner who has been trained only in addiction, or only in mental health, is trained for a minority of the people they will actually see.
This number carries different weight at different institutions. Palm Beach State College publishes HUS1450 "Dual Diagnosis" at 3 credits as part of its Addiction Studies college credit certificate. St. Petersburg College publishes HUS1450 "Dual Diagnosis I" at 2 credits — and the roman numeral indicates a sequence, meaning the content is divided across more than one course there.
The values in this guide follow the 3-credit form, consistent with this repository's entire published HUS family. SCNS equivalency does not cross credit values in practice for degree audit purposes: a student transferring a 2-credit "Dual Diagnosis I" into a program expecting 3 credits may be left short, and a student transferring the 3-credit form into a two-course sequence may be told to complete the second half. Have any transfer evaluated in writing.
The most consequential practical flag, and it repeats the warning attached to this repository's HUS1400 guide because students keep encountering it. Florida's addiction counseling credentials are issued by the Florida Certification Board, and the principal credential, the Certified Addiction Professional (CAP), requires coursework, a substantial number of supervised work experience hours, and an examination.
The trap is the supervision requirement. Hours count only when they are supervised by someone who qualifies as a supervisor under the Board's rules and documented as the Board requires. Students routinely work a year or more in a treatment setting, assume it counts, and discover at application that it does not — because the supervisor was not qualified, or the documentation was never kept.
What to do about it: obtain the current requirements from the Florida Certification Board before accepting a position, ask a prospective employer directly whether they provide qualifying supervision and documentation, and keep your own records contemporaneously rather than reconstructing them later. Requirements and credential categories are amended periodically — verify with the Board rather than relying on a syllabus, a prior cohort, or this guide.
This course teaches students to recognize patterns of psychiatric symptoms, and the boundary that follows must be explicit. Screening is not assessment, and assessment is not diagnosis. A certified addiction professional or behavioral health technician may screen, may gather history, may observe and document, and may refer — but diagnosing a mental disorder is the practice of a licensed profession in Florida, and doing it without a license is both a legal problem and a clinical one.
The distinction that makes this workable in practice: describe observations, not conclusions. "Client reports not sleeping for four days, speech is rapid, and he says he has stopped his medication" is documentation any practitioner can and should write. "Client is manic" is a diagnosis. The first is more useful to the treating clinician anyway.
Two Florida statutes govern involuntary intervention, and anyone working in Florida behavioral health must know both and must know that they are different.
For a dual-diagnosis population the interaction between the two is a routine practical question, and getting it wrong delays care. Both statutes have been amended repeatedly — verify current provisions rather than relying on a textbook.
Substance use treatment records carry protection beyond ordinary health information under 42 CFR Part 2. Historically these rules were substantially more restrictive than HIPAA regarding disclosure — including to other treating providers and to family — and while the framework has been amended in recent years to align more closely with HIPAA, meaningful differences remain and the rules are actively changing. Rule 11 applies; verify current requirements.
The practical implications for a dual-diagnosis practitioner are immediate: coordinating care between a mental health provider and a substance use provider involves disclosure rules that differ depending on which record the information came from, and a well-intentioned disclosure to a family member desperate for information can be a federal violation. When in doubt, obtain a proper consent.
This is uncomfortable and worth saying, because students in Florida will encounter it. Florida — South Florida especially — has been the site of extensive, prosecuted fraud in the addiction treatment and recovery residence sector: patient brokering, insurance fraud built on excessive urine drug testing, and "body brokering" in which patients are moved between facilities for kickbacks. Florida has responded with legislation, including voluntary certification of recovery residences and prohibitions on patient brokering under § 817.505, F.S., and prosecutions have been numerous.
What a new practitioner should take from this. Patient brokering is a felony, and accepting anything of value for a referral is the offense — including arrangements presented as marketing or as a signing bonus. Evaluate a prospective employer: ask whether the facility is licensed by DCF, whether any affiliated recovery residence is certified, and how referrals and testing are handled. And understand that a practitioner working in a facility engaged in fraud is exposed personally, not merely professionally. The great majority of Florida providers are legitimate; the point is to be able to tell, and to leave if you cannot.
This course discusses suicide, overdose, trauma, and severe mental illness in detail, and a meaningful proportion of students in human services programs have personal or family history with these subjects — many enter the field because of it. That lived experience is a genuine professional asset and is also a real vulnerability.
Two things belong in the course rather than being left to chance. Students in recovery should think deliberately about their own stability and boundaries before entering clinical settings; programs and the Florida Certification Board both address this, and it is not a disqualification. And secondary traumatic stress and burnout are occupational hazards in this field, with high turnover to match — supervision, peer consultation, and personal support are professional practices, not weaknesses. Institutional counseling services are available to students, and using them is consistent with the practice this course teaches.
HUS1450 is a lecture course, 3 credits and approximately 45 contact hours at institutions using the 3-credit form, consistent with this repository's HUS1001, HUS1400, and HUS2500. Institutions running it as a two-course sequence carry fewer credits per course. Expect case-based work, role-play and skills practice — motivational interviewing in particular is taught by practice, not description — and written case conceptualization.
The first digit of an SCNS number denotes the year of offering, not transferability. Courses at the 1000 and 2000 levels transfer transparently between Florida public institutions, and 3000 to 4000 is unproblematic since both are upper division. The boundary that actually matters is 2000 to 3000, where lower-division credit generally cannot satisfy an upper-division requirement.
Two notes. HUS1450 transfers as lower-division credit and is commonly part of a college credit certificate that stacks into an A.S. — confirm the stacking with your institution, because certificate-to-degree articulation is set locally. And students planning licensure as an LCSW, LMHC, or LMFT should understand that those are master's-level Florida licenses; this coursework supports the certification track and the bachelor's pathway, but the license itself requires graduate education and its own supervised hours.
Generated September 2, 2026 · Updated September 2, 2026