2007 ICD-9-CM Procedure 55.91 Decapsulation of kidney 55.91 is a specific code that can be used to specify a procedure 55.91 contains 3 index entries View the full Volume 3 55.* hierarchy 55.91 also known as: Capsulectomy of kidney Decortication of kidney Index entries containing 55.91: Capsulectomy kidney 55.91 Decapsulation, kidney 55.91 Decortication kidney 55.91