how many times have patient 15119's been visited in icu when they visited the hospital first time?
select count( distinct icustays.icustay_id ) from icustays where icustays.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 15119 and admissions.dischtime is not null order by admissions.admittime asc limit 1 )