Improved outcomes for individuals with co-occurring intellectual/developmental disability (IDD) and mental illness depends upon effective psychiatric treatment. Effective treatment requires an accurate psychiatric diagnosis. Obtaining that accurate diagnosis for individuals with IDD has been, and remains, very challenging. This book was written to address this challenge. More than 100 experts from around the world have now updated the DM-ID to accompany the DSM-5. | Diagnostic Manual—Intellectual Disability 2 (DM-ID) by Jarrett Barnhill, Paperback | Indigo Chapters