Table 5. Identifying diagnoses/procedures with the greatest change in terms of casemix index, from pre-intervention to post-intervention.
| a. Short-stay medical cases | ||||||||
|---|---|---|---|---|---|---|---|---|
| # | ICD code | Cases (n)
2013–2014 |
Cases (n)
2015–2016 |
Change
in cases (n) |
Change in
cases (%) |
Change
in CMI share, relative |
Change
in CMI, relative |
Description |
| 1 | C50 | 5,776 | 3,384 | -2,392 | -41.4% | -3.1% | 43.3% | Malignant neoplasm of breast |
| 2 | C91.0 | 2,873 | 1,223 | -1,650 | -57.4% | -2.4% | 19.9% | Acute lymphoblastic leukaemia |
| 3 | C76 | 297 | 89 | -208 | -70.0% | -0.6% | 5.9% | Malignant neoplasm of other and
ill-defined sites |
| 4 | C50.9 | 5,550 | 4,744 | -806 | -14.5% | -0.5% | 5.2% | Breast, unspecified |
| 5 | C91 | 680 | 130 | -550 | -80.9% | -0.7% | 5.1% | Lymphoid leukaemia |
| 6 | E88.0 | 92 | 2 | -90 | -97.8% | -0.4% | 4.0% | Disorders of plasma-protein
metabolism, not elsewhere classified |
| 7 | C90.0 | 1,135 | 474 | -661 | -58.2% | -0.9% | 3.7% | Multiple myeloma |
| 8 | C25.9 | 524 | 130 | -394 | -75.2% | -0.6% | 1.9% | Pancreas, unspecified |
| 9 | Z51 | 427 | 21 | -406 | -95.1% | -0.6% | 1.5% | Other medical care |
| 10 | I10 | 697 | 871 | 174 | 25.0% | 0.6% | 0.7% | Essential (primary) hypertension |
| 11 | C18.9 | 1,046 | 691 | -355 | -33.9% | -0.5% | 0.4% | Colon, unspecified |
| 12 | Z51.8 | 6 | 106 | 100 | 1666.7% | 0.1% | 0.3% | Other specified medical care |
| 13 | I46.9 | 82 | 103 | 21 | 25.6% | 0.2% | 0.3% | Cardiac arrest, unspecified |
| 14 | C56 | 1,414 | 947 | -467 | -33.0% | -0.6% | 0.3% | Malignant neoplasm of ovary |
| 15 | N18 | 86 | 134 | 48 | 55.8% | 0.2% | 0.3% | Chronic renal failure |
| 16 | I25.1 | 13 | 38 | 25 | 192.3% | 0.1% | 0.3% | Atherosclerotic heart disease |
| 17 | I21.9 | 25 | 49 | 24 | 96.0% | 0.1% | 0.3% | Acute myocardial infarction,
unspecified |
| 18 | I20.0 | 177 | 244 | 67 | 37.9% | 0.3% | 0.3% | Unstable angina |
| 19 | A09 | 947 | 1,126 | 179 | 18.9% | 0.5% | 0.3% | Diarrhoea and gastroenteritis of
presumed infectious origin |
| 20 | I48 | 77 | 142 | 65 | 84.4% | 0.2% | 0.3% | Atrial fibrillation and flutter |
| b. Medium-stay medical cases | ||||||||
| # | ICD code | Cases (n)
2013-2014 |
Cases (n)
2015-2016 |
Change
in cases (n) |
Change in
cases (%) |
Change
in CMI share, relative |
Change
in CMI, relative |
Description |
| 1 | A09 | 18,440 | 16,203 | -2,237 | -12.1% | -0.8% | 25.0% | Diarrhoea and gastroenteritis of
presumed infectious origin |
| 2 | I21 | 745 | 350 | -395 | -53.0% | -0.5% | 7.8% | Acute myocardial infarction |
| 3 | P22.0 | 420 | 707 | 287 | 68.3% | 0.3% | 6.1% | Respiratory distress syndrome of
newborn |
| 4 | J18.0 | 6,487 | 10,134 | 3,647 | 56.2% | 1.4% | 5.6% | Bronchopneumonia, unspecified |
| 5 | J44.1 | 439 | 1,064 | 625 | 142.4% | 0.5% | 5.0% | Chronic obstructive pulmonary
disease with acute exacerbation, unspecified |
| 6 | R10 | 11,406 | 10,034 | -1,372 | -12.0% | -0.6% | 4.4% | Abdominal and pelvic pain |
| 7 | I46.9 | 127 | 262 | 135 | 106.3% | 0.2% | 3.3% | Cardiac arrest, unspecified |
| 8 | R50 | 3,348 | 2,359 | -989 | -29.5% | -0.4% | 2.8% | Fever of unknown origin |
| 9 | K52.9 | 2,343 | 3,088 | 745 | 31.8% | 0.2% | 2.4% | Noninfective gastroenteritis and
colitis, unspecified |
| 10 | Z38.0 | 75 | 262 | 187 | 249.3% | 0.2% | 2.4% | Singleton, born in hospital |
| 11 | P22 | 1,369 | 1,035 | -334 | -24.4% | -0.3% | 2.4% | Respiratory distress of newborn |
| 12 | J20 | 2,291 | 3,038 | 747 | 32.6% | 0.2% | 2.4% | Acute bronchitis |
| 13 | R07.0 | 306 | 137 | -169 | -55.2% | -0.2% | 2.0% | Pain in throat |
| 14 | A41.9 | 525 | 708 | 183 | 34.9% | 0.2% | 1.8% | Septicaemia, unspecified |
| 15 | I64 | 1,454 | 1,071 | -383 | -26.3% | -0.3% | 1.7% | Stroke, not specified as
haemorrhage or infarction |
| 16 | A08.4 | 206 | 804 | 598 | 290.3% | 0.2% | 1.3% | Viral intestinal infection, unspecified |
| 17 | J18.9 | 2,079 | 3,124 | 1,045 | 50.3% | 0.6% | 1.2% | Pneumonia, unspecified |
| 18 | J98 | 166 | 3 | -163 | -98.2% | -0.2% | 1.1% | Other respiratory disorders |
| 19 | R10.4 | 3,167 | 2,564 | -603 | -19.0% | -0.2% | 1.1% | Other and unspecified abdominal
pain |
| 20 | G81.9 | 428 | 198 | -230 | -53.7% | -0.2% | 1.0% | Hemiplegia, unspecified |
| c. Long-stay medical cases | ||||||||
| # | ICD code | Cases (n) 2013-2014 | Cases (n)
2015-2016 |
Change
in cases (n) |
Change in
cases (%) |
Change
in CMI share, relative |
Change
in CMI, relative |
Description |
| 1 | P22 | 215 | 108 | -107 | -49.8% | -0.4% | 17.9% | Respiratory distress of newborn |
| 2 | F20.9 | 1 | 31 | 30 | 3000.0% | 1.4% | 4.9% | Schizophrenia, unspecified |
| 3 | F25.0 | 2 | 26 | 24 | 1200.0% | 1.1% | 3.1% | Schizoaffective disorder, manic type |
| 4 | A41.9 | 74 | 121 | 47 | 63.5% | 0.3% | 2.7% | Septicaemia, unspecified |
| 5 | I20 | 74 | 32 | -42 | -56.8% | -0.2% | 2.5% | Angina pectoris |
| 6 | F10 | 39 | 6 | -33 | -84.6% | -0.1% | 2.5% | Mental and behavioural disorders
due to use of alcohol |
| 7 | F11 | 45 | 13 | -32 | -71.1% | 0.0% | 2.4% | Mental and behavioural disorders
due to use of opioids |
| 8 | G81 | 49 | 11 | -38 | -77.6% | -0.2% | 2.4% | Hemiplegia |
| 9 | J98 | 42 | 0 | -42 | -100.0% | -0.2% | 2.2% | Other respiratory disorders |
| 10 | I50 | 139 | 102 | -37 | -26.6% | -0.1% | 2.1% | Heart failure |
| 11 | F20.0 | 88 | 58 | -30 | -34.1% | 0.0% | 2.0% | Paranoid schizophrenia |
| 12 | Z38.0 | 18 | 55 | 37 | 205.6% | 0.2% | 1.7% | Singleton, born in hospital |
| 13 | P22.0 | 114 | 149 | 35 | 30.7% | 0.3% | 1.5% | Respiratory distress syndrome of
newborn |
| 14 | F11.2 | 0 | 16 | 16 | 0.7% | 1.4% | Mental and behavioural disorders
due to use of opioids, dependence syndrome |
|
| 15 | M96.9 | 16 | 0 | -16 | -100.0% | -0.7% | 1.4% | Postprocedural musculoskeletal
disorder, unspecified |
| 16 | F25 | 45 | 21 | -24 | -53.3% | 0.0% | 1.3% | Schizoaffective disorders |
| 17 | R10.0 | 28 | 6 | -22 | -78.6% | 0.0% | 1.0% | Acute abdomen |
| 18 | I46.9 | 38 | 73 | 35 | 92.1% | 0.3% | 1.0% | Cardiac arrest, unspecified |
| 19 | J18.9 | 72 | 99 | 27 | 37.5% | 0.2% | 0.9% | Pneumonia, unspecified |
| 20 | G45.9 | 13 | 37 | 24 | 184.6% | 0.1% | 0.9% | Transient cerebral ischaemic attack,
unspecified |
| d. Surgical cases | ||||||||
| # | CPT code | Cases (n)
2013-2014 |
Cases (n)
2015-2016 |
Change
in cases (n) |
Change in
cases (%) |
Change
in CMI share, relative |
Change
in CMI, relative |
Description |
| 1 | F9410L1 | 18,833 | 14,894 | -3,939 | -20.9% | -0.6% | 43.4% | Vaginal delivery only including
postpartum care |
| 2 | X2986L1 | 1,153 | 1,687 | 534 | 46.3% | 1.3% | 33.7% | Percutaneous transluminal coronary
angioplasty: with stent; each additional vessel |
| 3 | M7447G1 | 745 | 954 | 209 | 28.1% | 0.5% | 4.9% | Arthroplasty, knee condyle and
plateau ("total knee replacement") |
| 4 | C3510G | 1,323 | 1,179 | -144 | -10.9% | -0.3% | 3.2% | Coronary artery bypass, vein only:
any number W/CPB |
| 5 | X2983L1 | 3,154 | 3,398 | 244 | 7.7% | 0.5% | 2.2% | Percutaneous transluminal coronary
angioplasty: with stent |
| 6 | C3000Gb | 423 | 809 | 386 | 91.3% | 0.4% | 1.5% | Cardiopulmonary bypass, including
cannulation: add to primary procedure (W/CPB) |
| 7 | X3548L | 11,900 | 12,556 | 656 | 5.5% | 0.2% | 1.1% | Combined left heart catheterization,
selective coronary angiography, one or more. |
| 8 | C3411G | 189 | 115 | -74 | -39.2% | -0.2% | 1.0% | Replacement, aortic valve: w/wout
aortic annulus enlargement, mechanical. |
| 9 | M7125G1 | 294 | 447 | 153 | 52.0% | 0.2% | 0.7% | Partial hip replacement, prosthesis
(eg, femoral stem prosthesis, bipolar arthroplasty) |
| 10 | R0140Gb | 3,600 | 3,959 | 359 | 10.0% | 0.0% | 0.7% | Submucous resection turbinate,
complete or partial |
| 11 | M2842G1 | 346 | 450 | 104 | 30.1% | 0.2% | 0.7% | Spinal instrumentation, posterior:
segmental fixation. |
| 12 | M7130G1 | 622 | 715 | 93 | 15.0% | 0.2% | 0.6% | Arthroplasty, acetabular and
proximal femoral prosthetic replacement (Age <60y) |
| 13 | F9812G | 3,386 | 2,959 | -427 | -12.6% | -0.1% | 0.5% | Treatment of incomplete or missed
abortion, any trimester, completed surgically |
| 14 | M2843G1 | 108 | 182 | 74 | 68.5% | 0.1% | 0.4% | Spinal instrumentation, posterior:
segmental fixation |
| 15 | X2987L | 23 | 58 | 35 | 152.2% | 0.1% | 0.4% | Closure of PDA or ASD by
Amplatzer |
| 16 | C3411Ga | 44 | 9 | -35 | -79.5% | -0.1% | 0.3% | Replacement, aortic valve: w/wout
aortic annulus enlargement, biological. |
| 17 | C5301G | 132 | 94 | -38 | -28.8% | -0.1% | 0.2% | Thromboendarterectomy, with or
without patch graft |
| 18 | U2332Gb | 656 | 852 | 196 | 29.9% | 0.0% | 0.2% | Cystourethroscopy, with insertion of
indwelling ureteral stent |
| 19 | D2820G | 2,651 | 2,349 | -302 | -11.4% | 0.0% | 0.2% | Tonsillectomy with or without
adenoidectomy |
| 20 | M7715G | 111 | 25 | -86 | -77.5% | -0.1% | 0.2% | Osteoplasty, tibia and fibula,
lengthening |
ICD, International Classification of Diseases; CPT, Common Procedural Terminology; CMI, casemix index; CPB, cardiopulmonary bypass; PDA, patent ductus arteriosus; ASD, atrial septal defect.