Frequencies for msr_cd variable in hqi_national_readmcompdeath dataset :

               Measure ID |      Freq.     Percent        Cum.
--------------------------+-----------------------------------
            COMP_HIP_KNEE |          1        6.67        6.67
              MORT_30_AMI |          1        6.67       13.33
               MORT_30_HF |          1        6.67       20.00
               MORT_30_PN |          1        6.67       26.67
PSI_12_POSTOP_PULMEMB_DVT |          1        6.67       33.33
      PSI_14_POSTOP_DEHIS |          1        6.67       40.00
           PSI_15_ACC_LAC |          1        6.67       46.67
          PSI_4_SURG_COMP |          1        6.67       53.33
            PSI_6_IAT_PTX |          1        6.67       60.00
            PSI_90_SAFETY |          1        6.67       66.67
             READM_30_AMI |          1        6.67       73.33
              READM_30_HF |          1        6.67       80.00
        READM_30_HIP_KNEE |          1        6.67       86.67
       READM_30_HOSP_WIDE |          1        6.67       93.33
              READM_30_PN |          1        6.67      100.00
--------------------------+-----------------------------------
                    Total |         15      100.00

by Jean Roth , jroth@nber.org , 16 Nov 2016