Table 3.
Case-Mix Group (CMG)* distributions and 30-day readmission rates for each rehabilitation impairment category.‡
| Population
|
Readmitted
|
||
|---|---|---|---|
| N | Column % | % (95% CI) | |
| Stroke | 155,476 | 100.0 | 12.7 (12.5, 12.9) |
| CMG 0101 | 7,312 | 4.7 | 9.0 (8.4, 9.7) |
| CMG 0102 | 14,626 | 9.4 | 10.1 (9.6, 10.6) |
| CMG 0103 | 2,804 | 1.8 | 11.2 (10.0, 12.3) |
| CMG 0104 | 26,180 | 16.8 | 11.2 (10.8, 11.6) |
| CMG 0105 | 21,932 | 14.1 | 12.1 (11.7, 12.6) |
| CMG 0106 | 19,635 | 12.6 | 12.5 (12.1, 13.0) |
| CMG 0107 | 16,558 | 10.6 | 13.2 (12.7, 13.7) |
| CMG 0108 | 9,990 | 6.4 | 16.7 (15.9, 17.4) |
| CMG 0109 | 11,047 | 7.1 | 13.3 (12.7, 14.0) |
| CMG 0110 | 25,392 | 16.3 | 15.3 (14.9, 15.8) |
| Brain dysfunction | 62,974 | 100.0 | 16.4 (16.1, 16.7) |
| CMG 0201 | 456 | 0.7 | 12.1 (9.1, 15.1) |
| CMG 0202 | 1,858 | 3.0 | 12.3 (10.8, 13.8) |
| CMG 0203 | 1,707 | 2.7 | 11.3 (9.8, 12.8) |
| CMG 0204 | 2,638 | 4.2 | 11.1 (9.9, 12.3) |
| CMG 0205 | 9,477 | 15.0 | 13.2 (12.5, 13.9) |
| CMG 0206 | 4,194 | 6.7 | 14.3 (13.2, 15.3) |
| CMG 0207 | 4,393 | 7.0 | 15.6 (14.5, 16.7) |
| CMG 0301 | 9,348 | 14.8 | 15.3 (14.5, 16.0) |
| CMG 0302 | 7,412 | 11.8 | 18.3 (17.5, 19.2) |
| CMG 0303 | 10,447 | 16.6 | 19.2 (18.4, 19.9) |
| CMG 0304 | 11,044 | 17.5 | 20.4 (19.6, 21.1) |
| Neurologic conditions | 73,740 | 100.0 | 17.4 (17.1, 17.6) |
| CMG 0601 | 3,588 | 4.9 | 13.0 (11.9, 14.1) |
| CMG 0602 | 18,334 | 24.9 | 16.1 (15.5, 16.6) |
| CMG 0603 | 28,422 | 38.5 | 17.7 (17.2, 18.1) |
| CMG 0604 | 22,110 | 30.0 | 19.2 (18.7, 19.8) |
| CMG 1901 | 485 | 0.7 | 12.0 (9.1, 14.8) |
| CMG 1902 | 634 | 0.9 | 7.6 (5.5, 9.6) |
| CMG 1903 | 167 | 0.2 | 9.0 (4.6, 13.3) |
| Lower ext fracture | 169,426 | 100.0 | 9.4 (9.3, 9.6) |
| CMG 0701 | 9,643 | 5.7 | 6.1 (5.7, 6.6) |
| CMG 0702 | 34,377 | 20.3 | 7.4 (7.1, 7.6) |
| CMG 0703 | 40,062 | 23.6 | 9.0 (8.7, 9.2) |
| CMG 0704 | 76,958 | 45.4 | 11.1 (10.9, 11.3) |
| CMG 1701 | 723 | 0.4 | 6.5 (4.7, 8.3) |
| CMG 1702 | 1,748 | 1.0 | 7.6 (6.4, 8.9) |
| CMG 1703 | 1,793 | 1.1 | 8.4 (7.1, 9.6) |
| CMG 1704 | 4,122 | 2.4 | 9.1 (8.2, 10.0) |
| Joint replace | 184,282 | 100.0 | 5.8 (5.7, 5.9) |
| CMG 0801 | 6,905 | 3.7 | 4.3 (3.9, 4.8) |
| CMG 0802 | 68,103 | 37.0 | 4.7 (4.5, 4.8) |
| CMG 0803 | 10,125 | 5.5 | 6.7 (6.2, 7.2) |
| CMG 0804 | 56,107 | 30.4 | 5.8 (5.6, 6.0) |
| CMG 0805 | 29,144 | 15.8 | 7.2 (6.9, 7.5) |
| CMG 0806 | 13,898 | 7.5 | 9.0 (8.5, 9.4) |
| Debility | 90,638 | 100.0 | 18.8 (18.6, 19.1) |
| CMG 2001 | 4,649 | 5.1 | 14.1 (13.1, 15.1) |
| CMG 2002 | 24,328 | 26.8 | 16.9 (16.4, 17.4) |
| CMG 2003 | 35,740 | 39.4 | 19.3 (18.8, 19.7) |
| CMG 2004 | 25,921 | 28.6 | 20.9 (20.4, 21.4) |
*
Case-Mix Group (CMG): Patients are classified into a case-mix group at the time of admission based on impairment category, motor and cognitive functional status and age. Case-mix groups are used to determine Medicare fee for service payment for individual patient stays.
‡
Rehabilitation Impairment Categories: Developed by CMS to classify patients receiving inpatient medical rehabilitation based on selected ICD-9-CM codes. See details in Appendix 1.