2007 ICD-9-CM Procedure 49.01 Incision of perianal abscess 49.01 is a specific code that can be used to specify a procedure 49.01 contains 4 index entries View the full Volume 3 49.* hierarchy Index entries containing 49.01: Incision (and drainage) abscess -- see also Incision, by site ischiorectal 49.01 perianal 49.01 ischiorectal tissue 49.02 abscess 49.01 perianal (skin) (tissue) 49.02 abscess 49.01