QUESTION: When performing an impairment rating (IR) for carpal tunnel syndrome (CTS), cubital tunnel, etc, I have always disregarded QuickDASH scores higher than 80 because Table 15-23, Entrapment/Compression Neuropathy Impairment, in the AMA Guides, Sixth Edition (6th ed, 449), does not list the functional scale options of anything other than normal, mild, moderate, or severe depending on which level is designated by averaging the three scores for test findings, history, and physical findings. The ranges listed for QuickDASH scores are normal (0-20); mild (21-40); moderate (41-60); and severe (61-80). I assume that QuickDASH scores of >80 are not included because a QuickDASH score that would equate to a “very severe” or level four functional scale would be akin to the grade modifier for functional history (GMFH) that is two levels higher than the grade...
