Frequencies for d_4_hos_c4_54 variable in prds_hosp10_yr2017 dataset :

Radiology-D |
  iagnostic |
    D00A184 |
      05400 |
      00400 |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      3,749      100.00      100.00
------------+-----------------------------------
      Total |      3,749      100.00

by Jean Roth , jroth@nber.org , 26 Oct 2018