Frequencies for first 10,000 rows of no_map variable in icd9toicd10cmgem dataset :

     No Map |
    Flag-No |
ICD-10 code |
    for the |
 ICD-9 code |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,989       99.89       99.89
          1 |         11        0.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 May 2016