instruction: What is the number of patients with the diagnoses of other specified surgical operations and procedure causing abnormal patient reaction, or later complication, without mention of misadventure at the time of procedure who were ordered a cerebrospinal fluid lab test?
response: SELECT COUNT(DISTINCT demographic.subject_id) FROM demographic INNER JOIN diagnoses ON demographic.hadm_id = diagnoses.hadm_id INNER JOIN lab ON demographic.hadm_id = lab.hadm_id WHERE diagnoses.short_title = "Abn react-surg proc NEC" AND lab.fluid = "Cerebrospinal Fluid (CSF)"