2007 ICD-9-CM Procedure 46.01 Exteriorization of small intestine Creation of an artificial external opening or fistula in the intestines. 46.01 is a specific code that can be used to specify a procedure 46.01 contains 7 index entries View the full Volume 3 46.* hierarchy 46.01 also known as: Loop ileostomy Index entries containing 46.01: Enterostomy NEC 46.39 duodenum 46.39 loop 46.01 ileum (Brooke) (Dragstedt) 46.20 loop 46.01 jejunum (feeding) 46.39 loop 46.01 Exteriorization intestine 46.03 small 46.01 Ileostomy 46.20 loop 46.01 Jejunostomy (feeding) 46.39 loop 46.01 Loop ileal stoma (see also Ileostomy) 46.01