Revisory of surgical disciplines of the health insurance company Prague investigate systematically the development of endoscopic surgery in Prague and in conjunction with it analyze recording and refunding of this health care by the General Insurance Company. In the submitted paper the authors review the recorded laparoscopic surgery and compare the development of operations from 1999 to 2001 as well as associated changes in recording and refunding of operation 51717 and associated DRG-markers and ZUM. They also describe the procedure of revisory medical officers in analyses of all available data from the health insurance company and their comparison with data in the health records. A positive contribution are the proceedings during checks and comparisons of the reported operation 51711 and ZUM with data in the health records and the possibility to eliminate errors as recording and accounting of the investigated operations still in 70 % of the health records which have erroneous data on operation 51711.

        Key words: code 51711 laparoscopic and thoracoscopic operation – DRG-markers – ZUM sub-group 82 – recording errors – analyses from General Health Insurance Co. 1999/2000, 2001