There have been several entries on our blog dealing with Impairment Rating Evaluations (IREs). Some deal with the procedure used by workers’ comp insurance carriers to turn the IRE into a change in status, from total disability to partial. Others deal with the magic 50% level that an injured worker must reach to avoid this change. A recent case, however, dealt with Maximum Medical Improvement (MMI), a finding that is required before the insurance carrier can even get an IRE.
A basic place to start this conversation would be the meaning of MMI. According to the American Medical Association “Guides to the Evaluation of Permanent Impairment,” the book we use for the IRE process, MMI is defined as:
“a status where patients are as good as they are going to be from the medical and surgical treatment available to them. It can also be conceptualized as a date from which further recovery or deterioration is not anticipated, although over time (beyond 12 months) there may be some expected change . . .”