2007 ICD-9-CM Procedure 48.21 Transabdominal proctosigmoidoscopy 48.21 is a specific code that can be used to specify a procedure 48.21 contains 4 index entries View the full Volume 3 48.* hierarchy 48.21 also known as: Intraoperative proctosigmoidoscopy 48.21 excludes: that with biopsy (48.24) Index entries containing 48.21: Endoscopy rectum 48.23 transabdominal (operative) 48.21 Examination (for) rectum (digital) 89.34 endoscopic 48.23 transabdominal 48.21 Proctoscopy 48.23 transabdominal approach 48.21 Proctosigmoidoscopy (rigid) 48.23 transabdominal approach 48.21