I know that with BCBS to code for a screening colonoscopy for someone under the age of 50 (having it due to family history of colon ca or personal h/o colon polyps) that to use diagnostic codes to get it paid for (45378,45380,45385) because a G code will get denied because the patient has to be 50 and older to have the G code applied, does this apply to only BCBS or across the board with all commercial insurance like United Healthcare, Cigna, Aetna..? Any info is appreciated!