CPT® Code 45355

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A colonoscopy, as described by CPT® Code 45355, involves the examination of the colon using a rigid or flexible endoscope. This procedure is performed transabdominally, meaning that it is conducted through the abdominal wall via colotomy, which is an incision made in the colon. The process begins with the creation of a small incision in the abdomen, allowing access to the colon. Once the incision is made, a segment of the colon is incised to facilitate the introduction of the colonoscope. The colonoscope is then carefully advanced through the colon, enabling the physician to inspect the mucosal surfaces for any abnormalities. During this inspection, the physician looks for various issues such as ulcerations, varices, bleeding sites, lesions, strictures, or other abnormalities that may require further attention. After the initial inspection, the endoscope is withdrawn, and the mucosal surfaces are re-examined to ensure that no abnormalities have been overlooked. If necessary, additional incisions may be made through the skin and into the colon, allowing for further colonoscopy through these separate access points. This comprehensive approach ensures a thorough evaluation of the colon, which is critical for diagnosing and managing various gastrointestinal conditions.