title: [DRGs in dermatology: quality of coding and the effects of case mix].
abstract: BACKGROUND
  High-quality coding of patient clinical data is mandatory for an effective DRG classification to result in adequate allocation of funding for inpatient treatment. The aim of the study was to determine the effect of controlled documentation on patient clinical data and to ascertain the outcome of calculated DRG-based yields depending on higher coding quality of patient treatment.
  
  
  METHODS
  In a prospective study, 1914 patient clinical records from the Department of Dermatology, University of Muenster, were captured using different documentation standards and the data was analysed. Grouping was performed on the basis of the Australian Refined DRG system v4.1. Dermatological patients were broken down into eleven groups based on principle diagnosis.
  
  
  RESULTS
  As a result of a controlled documentation, case mix, case mix index and patient clinical complexity level (PCCL) value were increased within identical samples. Furthermore, it was shown that high-quality coding may result in exact and reasonable classification of patient clinical data.
  
  
  CONCLUSIONS
  Different documentation standards may cause undesired effects on the monetary yields of in-patient treatment. It appears that high-quality coding and controlled documentation may guarantee adequate yields. FauIty. incomplete and (up)coding could be a potential economic risk for hospitals.
authors.affiliation: Klinik und Poliklinik für Hautkrankheiten, Universitätsklinikum Münster. hensenp@mednet.uni-muenster.de
authors.forename: Peter
authors.initials: P
authors.lastname: Hensen
authors.forename: Fiori
authors.initials: F
authors.lastname: Wolfgang
authors.forename: Christian
authors.initials: C
authors.lastname: Juhra
authors.forename: Sebastian
authors.initials: S
authors.lastname: Irps
authors.forename: Holger
authors.initials: H
authors.lastname: Bunzemeier
authors.forename: Thomas
authors.initials: T
authors.lastname: Schwarz
authors.forename: Thomas
authors.initials: T
authors.lastname: Luger
authors.forename: Norbert
authors.initials: N
authors.lastname: Roeder
mesh_terms: D003880:Dermatology / Q000592:standards*; D003953:Diagnosis-Related Groups / Q000191:economics / Q000706:statistics & numerical data*; D004282:Documentation / Q000379:methods* / Q000592:standards / Q000706:statistics & numerical data; D005260:Female; D005858:Germany / Q000453:epidemiology; D006801:Humans; D008297:Male; D010818:Practice Patterns, Physicians' / Q000191:economics / Q000706:statistics & numerical data*; D011785:Quality Assurance, Health Care / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012871:Skin Diseases / Q000145:classification* / Q000191:economics / Q000453:epidemiology* / Q000628:therapy