Summary statistics for icd10pcstoicd9gem dataset : by Jean Roth , jroth@nber.org , 11 May 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- icd10cm | 0 icd9cm | 0 flags | 0 approximate | 82,571 .9994308 .0238514 0 1 no_map | 82,571 0 0 0 0 -------------+--------------------------------------------------------- combination | 82,571 .0722409 .2588879 0 1 scenario | 82,571 .0722409 .2588879 0 1 choice_list | 82,571 .1430284 .5758327 0 6 by Jean Roth , jroth@nber.org , 11 May 2016