Frequencies for mdcdesc variable in drg2mdcxw2010 dataset :

        Major Diagnostic Category (MDC) |
                            Description |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
0: PRINCIPAL DX CAN NOT BE ASSIGNED T.. |         25        3.35        3.35
10: ENDOCRINE, NUTRITIONAL & METABOLI.. |         26        3.48        6.83
11: DISEASES & DISORDERS OF THE KIDNE.. |         43        5.76       12.58
12: DISEASES & DISORDERS OF THE MALE .. |         21        2.81       15.39
13: DISEASES & DISORDERS OF THE FEMAL.. |         25        3.35       18.74
14: PREGNANCY, CHILDBIRTH & THE PUERP.. |         15        2.01       20.75
15: NEWBORNS & OTHER NEONATES WITH CO.. |          7        0.94       21.69
16: DISEASES & DISORDERS OF BLOOD, BL.. |         15        2.01       23.69
17: MYELOPROLIFERATIVE DISEASES & DIS.. |         27        3.61       27.31
18: INFECTIOUS & PARASITIC DISEASES, .. |         17        2.28       29.59
        19: MENTAL DISEASES & DISORDERS |          9        1.20       30.79
1: DISEASES & DISORDERS OF THE NERVOU.. |         75       10.04       40.83
20: ALCOHOL/DRUG USE & ALCOHOL/DRUG I.. |          4        0.54       41.37
21: INJURIES, POISONINGS & TOXIC EFFE.. |         20        2.68       44.04
                              22: BURNS |          6        0.80       44.85
23: FACTORS INFLUENCING HLTH STAT & O.. |         10        1.34       46.18
        24: MULTIPLE SIGNIFICANT TRAUMA |          8        1.07       47.26
25: HUMAN IMMUNODEFICIENCY VIRUS INFE.. |          6        0.80       48.06
     2: DISEASES & DISORDERS OF THE EYE |         10        1.34       49.40
3: DISEASES & DISORDERS OF THE EAR, N.. |         25        3.35       52.74
4: DISEASES & DISORDERS OF THE RESPIR.. |         40        5.35       58.10
5: DISEASES & DISORDERS OF THE CIRCUL.. |         88       11.78       69.88
6: DISEASES & DISORDERS OF THE DIGEST.. |         61        8.17       78.05
7: DISEASES & DISORDERS OF THE HEPATO.. |         36        4.82       82.86
8: DISEASES & DISORDERS OF THE MUSCUL.. |         99       13.25       96.12
9: DISEASES & DISORDERS OF THE SKIN, .. |         29        3.88      100.00
----------------------------------------+-----------------------------------
                                  Total |        747      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016