The purpose of this study was to survey the organizational situation of medical record department(MRD) in hospitals to identify the factors influencing the production ol disease statistics in Korea. 134 hospitals answered for the structured questionnaires mailed to the 218 hospitals. This studs results are as follows. 1 ) There were three types in organizational situation of MRD: independent department (70.1%) a unit in other department (26.1 %) .and in the rest 3.7%. there were no MRD or unit. 2) The differences of work performed in MR ~) or on it in the second referral level hospitals and the third referral level hospitals were statistically significant in incomplete medical record management(p<0.05) DRG coding supplying research data, quality improvement activity. cancer registration(p<0.01) and transeription of medical record( p<0.0l). 3) 66.4% of the target hospitals were performing the recheeking of disease classification data after reponsible physicians completed the incomplete record 4) statistically significant variables which affect works performed in MRD are organizational situation of MRD(<0.001) and the number of medical record professionals. 41.3% of variation of works performed in MRD was explained by variation of organizational situation and the number of medical record professionals.