<prompt> What does a score of 9 in EDSS signifies?Death of patient due to multiple sclerosisPatient is bedridden, can talk, can drinkPatient is bedridden, cant talk, cant drinkPatient walks normally, shows no disability  <response>: Expanded disability severity score EDSSis used as measure of neurological impairment in multiple sclerosis. EDSS score: 3.5 Ambulatory Walks normally, shows no disability 9 Bedridden Can talk, Can drink 9.5 Bedridden Cant talk ,Cant drink 10 Death due to MS Revised McDonalds criteria is used in diagnosis of multiple sclerosis. 