[Prevalence of dementia in university hospitals : Analysis of ICD-10 coding in 5 university hospitals in Germany over a 2-year period].

Analysis of ICD-10-GM routine data can provide an indication of the prevalence of dementia in UH. Results of the >69-year-olds varied greatly between participating UH. The reasons for this might be different healthcare tasks, especially with respect to geriatric patients; however, it is also possible that assessment procedures are not standardized and unreliable and therefore the coding is invalid. A standardized procedure for the identification of people suffering from dementia is necessary.