title: [Financing of inpatient orthopedics and trauma surgery in the G-DRG system 2010].
abstract: BACKGROUND
  The German DRG (diagnosis-related groups) system forms the basis for billing inpatient hospital services. It includes not only the case groups (G-DRGs), but also additional and innovation payments. This paper analyzes and evaluates the relevant developments of the G-DRG System 2010 for orthopedics and traumatology from the medical and classification perspectives.
  
  
  METHODS
  Analyses of relevant diagnoses, medical procedures and G-DRGs in the versions 2009 and 2010 based on the publications of the German DRG institute (InEK) and the German Institute of Medical Documentation and Information (DIMDI) were carried out.
  
  
  RESULTS
  The DRG catalog is has grown from 8 to 1,200 G-DRGs. A number of codes for surgical measures have been newly established or modified. Here, the identification and the correct and performance-based mapping of complex and elaborate scenarios was again the focus of the restructuring of the G-DRG system. The G-DRG structure in orthopedics and traumatology has been changed, especially in the areas of spinal surgery and surgery of the upper and lower extremities. The actual impact of the changes may vary depending on the individual hospital services.
  
  
  CONCLUSIONS
  For the first time since the introduction of the G-DRG system, the pure numerical changes at the level of DRGs themselves are so marginal that only part of the DRG users in the hospitals will register them. The changes implemented not only a high selectivity between complex and less complex scenarios, but partly also unintended and unjustified revaluation of less complex measures. The G-DRG system has gained complexity again. Especially the G-DRG allocation of spinal surgery and multiple surgical interventions of the upper and/or lower extremities have reached such a complexity that only a few DRG users can follow them.
authors.affiliation: Geschäftsbereich Medizinisches Management-Medizincontrolling, DRG Research Group, Universitätsklinikum Münster, Domagkstr. 20, 48129, Münster, Germany. dominik.franz@ukmuenster.de
authors.forename: D
authors.initials: D
authors.lastname: Franz
authors.forename: F
authors.initials: F
authors.lastname: Schemmann
authors.forename: N
authors.initials: N
authors.lastname: Roeder
authors.forename: L
authors.initials: L
authors.lastname: Mahlke
mesh_terms: D001134:Arm Injuries / Q000191:economics / Q000601:surgery; D039702:Current Procedural Terminology; D003953:Diagnosis-Related Groups / Q000145:classification / Q000191:economics*; D005251:Fees, Medical / Q000145:classification; D005380:Financing, Government / Q000191:economics*; D006801:Humans; D007869:Leg Injuries / Q000191:economics / Q000601:surgery; D009313:National Health Programs / Q000191:economics*; D019637:Orthopedic Procedures / Q000191:economics*; D012051:Reimbursement Mechanisms / Q000191:economics*; D013124:Spinal Injuries / Q000191:economics / Q000601:surgery; D014947:Wounds and Injuries / Q000191:economics* / Q000601:surgery*