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Table 2 Coding error rate by coding items

From: Potential loss of revenue due to errors in clinical coding during the implementation of the Malaysia diagnosis related group (MY-DRG®) Casemix system in a teaching hospital in Malaysia

Coding items Total case reviewed Total error cases (%) Kappa value p value
Primary diagnosis code
 All Cases 464 231 (49.8) 0.495 <  0.001
 Medical 116 65 (56.0) 0.441 <  0.001
 Surgical 116 47 (40.5) 0.581 <  0.001
 O&G 116 61 (52.6) 0.444 <  0.001
 Paediatric 116 58 (50.0) 0.460 <  0.001
Secondary diagnosis code
 All Cases 464 377 (81.3) 0.108 <  0.001
 Medical 116 98 (84.5) 0.180 <  0.001
 Surgical 116 87 (75.0) 0.171 <  0.001
 O&G 116 108 (93.1) 0.038 <  0.001
 Paediatric 116 84 (72.4) 0.261 <  0.001
Primary procedure code
 All Cases 464 236 (50.9) 0.159 <  0.001
 Medical 116 66 (56.9) 0.010 <  0.001
 Surgical 116 58 (50.0) 0.022 <  0.001
 O&G 116 51 (44.0) 0.023 <  0.001
 Peadiatric 116 61 (52.6) 0.013 <  0.001
Secondary procedure code
 All Cases 464 270 (58.2) 0.210 <  0.001
 Medical 116 67 (57.8) 0.176 <  0.001
 Surgical 116 76 (65.5) 0.145 <  0.001
 O&G 116 98 (84.5) 0.052 <  0.001
 Peadiatric 116 29 (25.0) 0.202 <  0.001