Capacity Litigators Beware: DSM-IV to be Revised
A fifth edition of the Diagnostic and Statistic Manual of Mental Disorders (known as the "DSM-IV") is imminent, according to the chair of the task force responsible for the fourth edition, Dr. Allen Frances, quoted in this National Post article. The DSM-IV is considered the most authoritative manual for defining and classifying mental illnesses.
The relevance to capacity litigation is that the language doctors use to talk about patients and record their observations may change, perhaps significantly. According to Dr. Frances, revisions to the definitions of attention-deficit hyperactivity disorder, autism and childhood bipolar disorder (i.e., manic depression) resulted in an unintended 40-fold increase in rates of diagnosed bipolar disorder. A patient's diagnosis is a major variable in his or her treatment. There was a dramatic increase in prescriptions of anti-depressants over this period.
Revised definitions would not necessitate corresponding changes in legal capacity, of course. The tests for the various levels capacity are functional in nature; they evaluate an individual's observed ability to make decisions and do things. Good capacity assessments tell a story, and the elements of the story must support the conclusions reached. If not, the assessment will be rejected. Re Koch is instructive on this point. It is hard to read the judgment and imagine that including medical terms would have made any difference at all.
On the other hand, changes to the DSM-IV may be very relevant for expert opinions on capacity given after an individual's death, where the opinion relies heavily on medical reports and observations of treating physicians to assess an individual's capacity at a specific time during that individual's life.
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Christopher M.B. Graham - Click here to learn more about Chris Graham.
