Illnesses are the most common cause of disability, accounting for 81 percent of cases. Of these, mental illnesses (49 percent), diseases of the bones and musculoskeletal system (12 percent) and nervous disorders (9 percent) account for the largest share.
Accidents account for 6 percent and birth defects for 13 percent of the causes of disability.
Further information can be found in the [info sheet "AI statistics 2021" (german version)