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Removal of polyps or growths of lower large bowel using a flexible endoscope with mechanical snare

Ultrasound exam of lower large bowel using a flexible endoscope

Diagnostic exam of anus and rectum under anesthesia

Insertion of drain (seton) into anus

Drainage of deep abscess in rectum

Drainage of superficial rectal abscess surrounding anus

Incision and drainage of abscess in wall of rectum or between rectum and muscle with incision or removal of abnormal drainage tract

Incision of sphincter of anus

Incision of external hemorrhoid with blood clot

Removal of chronic tear of anus