let's count the number of times patient 58932 has had a other craniectomy procedure.
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 = 'other craniectomy' ) and procedures_icd.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 58932 )