instruction: how many patients with diagnoses of obstructive incisional hernia have inpatient hospital discharge location?
response: SELECT COUNT(DISTINCT demographic.subject_id) FROM demographic INNER JOIN diagnoses ON demographic.hadm_id = diagnoses.hadm_id WHERE demographic.discharge_location = "DISC-TRAN CANCER/CHLDRN H" AND diagnoses.short_title = "Obstr incisional hernia"