2007 ICD-9-CM Procedure 86.03 Incision of pilonidal sinus or cyst 86.03 is a specific code that can be used to specify a procedure 86.03 contains 4 index entries View the full Volume 3 86.* hierarchy 86.03 excludes: marsupialization (86.21) Index entries containing 86.03: Drainage cyst -- see also Drainage, by site and Incision, by site pilonidal 86.03 pilonidal cyst or sinus 86.03 Exploration -- see also Incision pilonidal sinus 86.03 Incision (and drainage) pilonidal sinus (cyst) 86.03