2007 ICD-9-CM Procedure 56.31 Ureteroscopy Endoscopic examination, therapy or surgery of the ureter. 56.31 is a specific code that can be used to specify a procedure 56.31 contains 3 index entries View the full Volume 3 56.* hierarchy Index entries containing 56.31: Endoscopy ureter 56.31 Exploration -- see also Incision ureter (by incision) 56.2 endoscopic 56.31 Ureteroscopy 56.31 with biopsy 56.33