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. 2020 May 14;5:95. [Version 1] doi: 10.12688/wellcomeopenres.15810.1

Table 3. Summary results of casemix index (CMI) changes due diagnoses and procedures within different case types.

Case type Number of
codes (n)
Top 20 codes
proportion of total
cases (%)
Range of change in CMI
share per code (%)
Medical Short-stay 3,164 94.1% -3.1% to 0.6%
Medium-stay 5,828 80.6% -0.8% to 1.4%
Long-stay 1,566 55.8% -0.7% to 1.4%
Surgical 3,911 96.2% -0.6% to 1.3%