our physician schedules a screening/preventive colonoscopy for a patient. The hospital orders/registration form states procedure as screening colonoscopy and history and physical dictated by the physician states colonoscopy to be done for screening purposes but the patient may have had occasional rectal bleeding probably from hemorrhoids but not a significant problem to the patient. Does the hospital coders have the right to post the colonoscopy as a diagnostic procedure rather than preventive due to the mention of the occasional bleeding