If you go to the official paralympics web site, there is a pdf file for each sport which can be downloaded explaining each code classification. It is quite complicated as there are lots of criteria to meet for a classification which is explained in the manual. The site is
http://www.paralympic.org/release/Main_Sections_Menu/Classification/Sport_Specific_Classification/
EG. S1
1. Tetraplegia or polio comparable to a complete lesio
n below C5.
2. Very severe quadriplegia with poor head and trunk
control and very limited movements of all limbs for
propulsion.
3. Severe arthrogryposis affect all four limbs with
severely restricted movement in the upper limbs and lim
ited
propulsion in the lower limbs.
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