Can someone please confirm this date of illness dates
Senario
Doctor DO
John Doe Patient was seen
Superbill/fee slip Dos 4/2/14
Treatment therapy services dx given 722.4,724.4,726.10
date of illness 4/2/14
Superbill/fee slip dos 5/7/14
Treatment office visit only cx given 440.9
date of illness 5/7/14
Superbill/fee slip dos 5/20/14
Treatment therapy services dx given 723.1, 723.3, 722.4, 728.85
Question should the date of illness go back to 4/2/14 (since some of the same dx were given)
Or
Should the date of illness be 5/20/14
Thanks