What key changes did the DSM-5 implement in comparison to the DSM-IV TR?

The key change implemented in the DSM-5 is the elimination of the multiaxial system used in the DSM-IV TR, specifically the restructuring that combines the previously separate axes into a single diagnostic category. In the DSM-IV TR, mental health diagnoses were organized into five axes, allowing for a comprehensive assessment of an individual's mental health. The DSM-5 moved away from this multiaxial system entirely, recognizing the need for a more integrated approach to diagnosis that reflects the complexity of mental health conditions.

By collapsing the first three axes of the DSM-IV TR, which included clinical disorders, personality disorders, and intellectual disabilities, the DSM-5 streamlines the diagnostic process and acknowledges the interplay between different types of disorders. This change facilitates a clearer understanding of the diagnosis and treatment of mental health issues, enabling clinicians to consider all aspects of a patient’s mental and physical health in a more unified manner.

While the other answer choices may have elements related to the changes made in the DSM-5, the specific action of collapsing the axes into one cohesive category is a definitive feature of the update, underscoring the movement towards a more holistic diagnosis and treatment framework in mental health.