2007 ICD-9-CM Procedure 35.99 Other operations on valves of heart 35.99 is a specific code that can be used to specify a procedure 35.99 contains 2 index entries View the full Volume 3 35.* hierarchy Index entries containing 35.99: Operation cardiac NEC 37.99 valve NEC 35.99 heart NEC 37.99 valve NEC 35.99 adjacent structure NEC 35.39