[The quality of the data on hospital discharge]

Methods and results of a study on quality of the hospital discharge data are described. The study has been performed in the Hospital of Padova (Italy) and carried out on charts of all patients discharged in 1988. The completeness of discharge forms compilation, the appropriateness of diagnosis and surgical procedures coding, the correspondence between discharge forms and medical record data, the correspondence between discharge forms and computerized data have been analyzed. Four thousand seven hundred seventy six discharge forms were analyzed and 1226 (26.2%) showed one or more errors. Coding procedures have been incorrect in 18.6% of the cases. Improvement actions which have been adopted are described.