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Weighted Inlier Equivalent Separations

The Weighted Inlier Equivalent Separations (WIES) methodology is updated from time to time. The table below shows the WIES methodology which applies in each financial year:

WIES Methodology	Financial Year
WIESNZ08	2008/09
11c	2007/08
11b	2006/07
11a	2005/06
8c	2004/05 & 2003/04
8b	2002/03
8a	2001/02
5a	2000/01

WIESNZ08 Cost Weights

• Documentation of the WIESNZ08 methodology, Version 9 Final, 30 April 2008 (Word, 3 MB)
• WIESNZ08 cost weight table Version 1.3 (Excel, 195 KB)

WIES11C Cost Weights

• Documentation of the WIES11C methodology, 28 April 2006 (Word, 3 MB)

WIES11B Cost Weights

• Documentation of the WIES11B methodology, 28 April 2006 (Word, 1.92 MB)
• WIES11B cost weight table (Excel file, 204 kB)

WIES11A Cost Weights

• Documentation of the WIES11A methodology, 16 March 2005 (Word, 1.56 MB)
• WIES11A cost weight table (Excel file, 204 kB)

WIES8C Cost Weights

• Documentation of the WIES8C methodology, 12 March 2003 (Word file, 1.1 MB)
• WIES8C cost weight table (Excel file, 170 kB)

WIES8B Cost Weights

• Report from the DHBNZ SFG Cost Weights Group ‘An examination of the change to AR-DRG 4.2 while maintaining the existing cost weights’ (Word file, 180 kB)
• Documentation of the WIES8B methodology, 13 March 2002 (Word file, 437 kB)
• WIES8B specification (SAS program, 66 kB)
• WIES8B cost weight table (Excel file, 172 kB)

WIES8A Cost Weights

• Documentation of the WIES8A methodology, 10 October 2001 (Word file, 1.2 MB).
  This version is the same as the version of 6 June 2001, with the exception of a new DRG allocation (see page 8 of the document).
  On 1 October line 3 of box 1 was changed to read "... ≥6" (was >6).
  On 10 October, line 6 of box 2a was changed to read “...≤1” (was <1).
• WIES8A specification (SAS program, 24 kB)
• WIES8A cost weight table (Excel file, 331 kB)

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