THE FRAMEWORK OF THE MEDICALIZATION OF TH E HOSPITAL INFORMATION-SYSTEM - BIASES, SOURCES OF ERRORS AND CONSEQUENCES

This paper reviews: 1) the biases linked to the definition method of t he Diagnosis Related Groups (DRG), and the biases due to the implicit hospital model of the French programme medicalizing hospital informati on system (PMSI) which limit its use in hospital management; 2) the so urces of errors met in use in the different kinds of data networks whe n collecting administrative data from medical discharge abstracts, whi ch can induce mistakes in patient hospitalization counts and in the re presentation of medical units contribution to patients care; 3) the so urces of errors in collecting medical informations from medical discha rge abstracts can make the patient hospitalizations classified in DRG unrepresentative or uninterpretable; 4) the problems linked to the int erpretation of the indicators estimated from the DRGs in hospital mana gement and financial allocation.