I am trying to comply with the CMS NCCI edits and have recently gotten a denial. A client came in for a 90846 and a few hours later for a 90806 - 2 appointments in the same day, but a different procedure code. Medicaid said I could try a modifier, but I am slightly confused as to which I should use. Would I used the modifier 25 - for significant, seperately identifiable evaluation and management service by the same physician on the same day of the procedure or other service? Both services were provided by the same clinician, but I know those codes do not fall under E/M codes. Any suggestions?