2007 ICD-9-CM Procedure 55.99 Other 55.99 is a specific code that can be used to specify a procedure 55.99 contains 2 index entries View the full Volume 3 55.* hierarchy 55.99 excludes: removal of pyelostomy or nephrostomy tube (97.61) Index entries containing 55.99: Operation kidney NEC 55.99 renal NEC 55.99