count how many times until 2104 patient 73595 has had a exc/dest intvrt disc nos.
select count(*) from procedures_icd where procedures_icd.icd9_code = ( select d_icd_procedures.icd9_code from d_icd_procedures where d_icd_procedures.short_title = 'exc/dest intvrt disc nos' ) and procedures_icd.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 73595 ) and strftime('%y',procedures_icd.charttime) <= '2104'