2007 ICD-9-CM Procedure 42.23 Other esophagoscopy 42.23 is a specific code that can be used to specify a procedure 42.23 contains 2 index entries View the full Volume 3 42.* hierarchy 42.23 excludes: that with biopsy (42.24) Index entries containing 42.23: Endoscopy esophagus NEC 42.23 through stoma (artificial) 42.22 transabdominal (operative) 42.21 Esophagoscopy NEC 42.23 by incision (operative) 42.21 with closed biopsy 42.24 through stoma (artificial) 42.22 transabdominal (operative) 42.21