2007 ICD-9-CM Procedure 12.33 Lysis of posterior synechiae 12.33 is a specific code that can be used to specify a procedure 12.33 contains 7 index entries View the full Volume 3 12.* hierarchy 12.33 also known as: Lysis of iris adhesions NOS Index entries containing 12.33: Division posterior synechiae 12.33 synechiae iris (posterior) 12.33 anterior 12.32 Freeing posterior synechiae 12.33 synechiae (posterior) 12.33 anterior (with injection of air or liquid) 12.32 Lysis adhesions iris (posterior) 12.33 anterior 12.32 synechiae (posterior) 12.33 anterior (with injection of air or liquid) 12.32 Synechiotomy iris (posterior) 12.33 anterior 12.32