The structure of the revised Guidelines has significantly changed from the first edition, and is formatted in four parts:
- Part A addresses the nature and extent of comorbidity, and discusses why it is important for AOD services to respond. Information regarding the prevalence, guiding principles, and classification of disorders are contained in Part A.
- Part B contains information regarding responding to comorbidity, including holistic health care, identifying comorbidity, risk assessments, care coordination, approaches to comorbidity, managing and treating specific disorders, and worker self-care.
- Part C addresses specific population groups.
- Useful resources, techniques, and worksheets are contained in the appendices.
It should be noted that although the first edition of the Guidelines had separate chapters for information regarding managing and treating comorbidity, the revised edition has combined these into one cohesive section (see Chapter B6), which addresses specific disorders. In addition, the revised edition has included discussion of comorbid attention-deficit/hyperactivity disorder (ADHD) as well as feeding and eating disorders (ED).