Z I M  Centre for Informatics and Managed Care

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Contents

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The Company

Main activities of  Z I M 

• Consulting and research in health economics
• Medical economics
• Medical informatics
• Development and application of patient classification systems
• Recycling of medical information
• Publishing house

Foundation

Founded 1992
Owner and Director: Wolfram Fischer

Site

The  Z I M  in Wolfertswil is situated:

• In East Switzerland: between Zurich and St. Gallen.
• In the Low Toggenburg: between Flawil and Degersheim (railway stations).
• 780 meters / 2500 ft above sea level.
  (Neighbouring webcam: above Degersheim, 860 m / 2800 ft.)

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«Streiflichter»

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Research Studies by Wolfram Fischer – Z I M 

• Remuneration of Hospital Emergency Services
  Patient Classification Systems and Emergency Flat Rates with DRG Based Remuneration of Inpatient Treatment
  1. Auflage, Wolfertswil 2009 (ZIM): 180 pp. – 21 x 15 cm – 53 figures and tables (in German)

• Statistical Graphics to Assess Patient Classification Systems
  illustrated through the paediatric view on the APDRG system
  Wolfertswil 2008 (ZIM): 169 pp. – 21 x 15 cm – 81 figures and tables (in German)

• Wolfram Fischer et al.
  The TAR-System and Other Patient Classification Systems for Rehabilitation
  TAR Research Report and Brief Descriptions of Systems from Germany, France, Australia, and USA
  Wolfertswil 2006 (ZIM): 89 pp. – 21 x 15 cm – 34 figures and tables (in German)

• New Methods of Hospital Performance Comparisons
  A Workshop Manual for the Visualisation of DRG-Based Data
  Wolfertswil 2005 (ZIM): 160 pp. – 30 x 21 cm – 109 figures and tables (in German)

• Diagnosis Related Groups (DRGs) and Nursing
  Basics, Coding Systems, Possibilities of Integration
  Bern 2002 (Huber): 472 pp. – 24 x 17,5 cm – 367 figures and tables (in German)

• Diagnosis Related Groups (DRGs) and Related Patient Classification Systems
  Description and Evaluation of the Systems: HCFA-DRG, RDRG, AP-DRG, APR-DRG, IAP-DRG, NordDRG (Scandinavia), GHM (France), AR-DRG (Australia), LDF (Austria)
  Wolfertswil 2000 (ZIM): 181 pp. – 30 x 21 cm (in German)

  Additional information about the following further systems is available only on internet:
  CMG (Canada), G-DRG (Germany), HRG (United Kingdom), IR-DRG, MS-DRG, SQLape (Switzerland).

• Diagnosis Related Groups (DRGs) Compared with the Patient Classification Systems of Austria and Germany
  A problem centered discussion of patient classification systems for acute inpatient treatment with regard to their use in remuneration systems
  Wolfertswil 1999 (Z I M): 155 pp., (in German)

• Patient Classification Systems for Grouping Hospital Cases
  Principles and examples
  Bern und Wolfertswil 1997 (BSV + Z I M): 514 pp., (in German)

• The Relevance of Nursing Diagnoses in Health Economics and Health Statistics
  Wolfertswil 1999 (Z I M): 39 pp., (in German)

• Nursing Workload Measurement Systems
  A survey
  Aarau 1995 (H+ Die Spitäler der Schweiz): 124 pp., (in German)

• Possibilities for Measuring the Performance of Hospitals
  Thoughts on a new design of the swiss hospital statistics
  Bern 1994 (BSV - Federal Social Insurance Office): 200 pp., (in German and in French)

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Selected English Papers

Author: Wolfram Fischer

• Do You Speak DRG ?.
  Measuring the Complexity of Labels of Medicare DRGs, AR-DRGs, and G-DRGs by Counting Conjunctions.
  In: Proceedings of the 23rd PCSI International Working Conference, Venezia 2007.
  Internet: http:// www.fischer-zim.ch / paper-en-pdf / DRG-Labels-0711-PCSI.pdf.

• Base-DRGs, Fractionation Coefficient, and Treemaps for the Assessment of the Relative Clinical Homogeneity of DRG Systems.
  In: Revue économique et sociale, Lausanne 2006(64)special issue: 111–144.
  Internet: http:// www.fischer-zim.ch / paper-en-pdf / Relative-Clinical-PCS-Homogeneity-0509.pdf.

• A Comparison of Australian National Cost Weights from 1997/98 until 1999/00.
  In: Proceedings of the 18th PCS/E International Working Conference, Innsbruck 2002: 128–146.
  Internet: http:// www.fischer-zim.ch / paper-en / CW-AR4-Analysis-0210-PCSE.htm.

• Homogeneity of Nursing Workload Measured by LEP Within AP-DRGs.
  In: Proceedings of the 17th PCS/E International Working Conference, Brugge 2001: 154–161.
  Internet: http:// www.fischer-zim.ch / paper-en / APDRG-LEP-USZ-0110-PCSE.htm.

• Approaches to Multidimensionality in DRG Development.
  In: Proceedings of the 16th PCS/E International Working Conference, Groningen 2000: 227–230.
  Internet: http:// www.fischer-zim.ch / paper-en / DRG-Dimensions-0009-PCSE.htm.

• Are DRGs Homogeneous With Regard to Resource Consumption?.
  An Analysis of Coefficients of Variation
  of Some Systems of the DRG Family.
  In: Proceedings of the 16th PCS/E International Working Conference, Groningen 2000: 223–226.
  Internet: http:// www.fischer-zim.ch / paper-en / PCS-Homogeneity-0009-PCSE.htm.

• A Comparison of PCS Construction Principles of the American DRGs, the Austrian LDF System and the German FP/SE System.
  In: Casemix Quarterly, Padova 2000(2)1: 12–20.
  Internet: http:// www.fischer-zim.ch / paper-en / PCS-Comparison-9909-PCSE.htm.

• Multidimensionality as an Alternative Approach to Construct Patient Classification Systems.
  In: Proceedings of the 14th PCS/E International Working Conference, Manchester 1998: 294.
  Internet: http:// www.fischer-zim.ch / paper-en / Multi-Dimensional-PCS-9810-PCSE.htm.

• Comparison of Cost Weight Proportions of Different Patient Classification Systems.
  In: Proceedings of the 13th PCS/E International Working Conference, Florence 1997: 230–234.
  Internet: http:// www.fischer-zim.ch / paper-en / Cost-Weights-9710-PCSE.htm.

• Design Principles for an Inpatient Rehabilitation Patient Classification System.
  In: Proceedings of the 13th PCS/E International Working Conference, Florence 1997: 227–229.
  Internet: http:// www.fischer-zim.ch / paper-en / PCS-Reha-Design-9710-PCSE.htm.

• PCS Construction.
  Some Ideas About Concepts and Instrument from an International Perspective.
  Beitrag zum: National Casemix Office International Workshop, London 15./16.4.1996.

• PCS and Casemix Types.
  A Theoretical Approach.
  In: Proceedings of the 11th PCS/E International Working Conference, Oslo 1995: 50–57.
  Internet: http:// www.fischer-zim.ch / paper-en / PCS-Types-9506-PCSE.htm.

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Other Studies (as Co-Author)

• Sermeus W, Weber P, Fischer W, Hunstein D.
  The DRG Imperative: Overview and Nursing Impact.
  In: Weaver CA, Delaney CW, Weber P, Carr RL : Nursing and Informatics for the 21st Century, Chicago (HIMSS) 2006: 231–245.

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Z I M  -  Zentrum für Informatik und wirtschaftliche Medizin CH-9116 Wolfertswil (SG), Steigstrasse 12, Switzerland E-mail: , Tel: +41 71 3900 444

©  Z I M 
Source = http://www.fischer-zim.ch/info/zim-en.htm
( latest compilation: 17.11.2009 )