Table 10. Percent contributions to case-mix index trends and shifts, by diagnosis-related groups with potential for outpatient substitution.
| Diagnosis-related group | Percent contribution to | |||
|---|---|---|---|---|
|
| ||||
| Total | Trend | Fiscal year 1984 shift | ||
| 6 | Carpel tunnel release | 0.85 | 0.68 | 1.07 |
| 39 | Lens procedures | 1.51 | −13.98 | 19.21 |
| 40 | Extraocular procedures, except orbit age > = 18 | 1.03 | 1.83 | 0.13 |
| 53 | Sinus and mastoid procedures, age > = 18 | −0.10 | 0.14 | −0.38 |
| 55 | Miscellaneous ear, nose and throat procedures | 0.20 | 0.42 | −0.05 |
| 61 | Myringotomy age > = 18 | 0.04 | 0.03 | 0.06 |
| 161 | Inguinal and femoral hernia procedures, age > = 70 and/or complications or comorbidities | −0.02 | 0.93 | −1.11 |
| 162 | Inguinal and femoral hernia procedures, age 18-69 without complications or comorbidities | 1.05 | 2.04 | −0.06 |
| 187 | Dental extractions and restorations | 0.33 | 0.83 | −0.22 |
| 221 | Knee procedures, age > = 70 and/or complications or comorbidities | 0.10 | 0.24 | −0.04 |
| 222 | Knee procedures, age < 70 without complications or comorbidities | −0.01 | −0.11 | 0.12 |
| 225 | Foot procedures | −0.03 | −0.32 | 0.31 |
| 228 | Ganglion (hand) procedures | 0.18 | 0.41 | −0.07 |
| 229 | Hand procedures except ganglion | 0.40 | 0.32 | 0.50 |
| 232 | Arthroscopy | 0.08 | −0.00 | 0.18 |
| 261 | Breast procedures for nonmalignancy except biopsy and local excision | 0.03 | 0.05 | 0.00 |
| 262 | Breast biopsy and local excision for nonmalignancy | 0.49 | 1.17 | −0.27 |
| 266 | Skingrafts except for skin ulcer or cellulitis without complications or comorbidities | 0.12 | 0.15 | 0.08 |
| 267 | Perianal and pilonidal procedures | 0.00 | 0.03 | −0.03 |
| 268 | Skin, subcutaneous, tissue and breast plastic procedures | 0.14 | 0.19 | 0.09 |
| 270 | Other skin, subcutaneous tissue, and breast operating room procedures age < 70 without complications or comorbidities | 0.32 | 0.55 | 0.07 |
| 310 | Transurethral procedure, age > = 70 and/or complications or comorbidities | −0.15 | 0.46 | −0.86 |
| 311 | Transurethral procedure, age < 70 without complications or comorbidities | 0.41 | 0.65 | 0.16 |
| 320 | Kidney and urinary tract infections, age > = 70 and/or complications or comorbidities | −0.81 | −2.07 | 0.61 |
| 321 | Kidney and urinary tract infections age 18-69 without complications or comorbidities | 0.75 | 1.04 | 0.44 |
| 322 | Kidney & urinary tract infections, age 0-17 | 0.00 | 0.01 | −0.01 |
| 328 | Urethral stricture, age > 70 and/or complications or comorbidities | 0.39 | 0.67 | 0.08 |
| 329 | Urethral stricture, age 18-69 without complications or comorbidities | 0.20 | 0.36 | 0.02 |
| 336 | Transurethral prostatectomy, age > = 70 and/or complications or comorbidities | −0.21 | −0.17 | −0.31 |
| 337 | Transurethral prostatectomy, age < 70 without complications or comorbidities | 0.62 | 0.91 | 0.31 |
| 342 | Circumcision, age > = 18 | 0.26 | 0.63 | −0.16 |
| 359 | Tubal interruption for nonmalignancy | 0.01 | 0.02 | 0.00 |
| 361 | Laparoscopy and endoscopy (female) except tubal interruption | 0.05 | 0.06 | 0.06 |
| 362 | Laparoscopic tubal interruption | 0.02 | 0.05 | −0.01 |
| 364 | Dilation and curettage, conization, except malignancy | 1.00 | 1.47 | 0.47 |
| 410 | Chemotherapy | −7.19 | −10.41 | −3.57 |
| 412 | History of malignancy, with endoscopy | 0.91 | 1.14 | 0.64 |
SOURCE: The Rand Corporation: Analysis of calendar year 1981 MEDPAR and fiscal year 1984 PATBILL files.