###HUMAN: when did patient 19040 first get a procedure on their first hospital visit?, ###ASSISTANT: SELECT procedures_icd.charttime FROM procedures_icd WHERE procedures_icd.hadm_id IN (SELECT admissions.hadm_id FROM admissions WHERE admissions.subject_id = 19040 AND NOT admissions.dischtime IS NULL ORDER BY admissions.admittime LIMIT 1) ORDER BY procedures_icd.charttime LIMIT 1