pt is coming in w/o cc. Wants to have screening colonoscopy. Shouldn't 99401-99402 be used as there are no symptoms. Insurance is denying office visit 99203 w/dx V76.51 as sick code with routine dx code. Colonoscopy was done 12 days later w/o modifier.I believe that we should use the counseling codes with V76.50 as dx. and as far as the colonoscopy goes there should be a 33 modifier as this is United Health Care, Any help is greatly appreciated.