2007 ICD-9-CM Procedure 40.42 Radical neck dissection, bilateral 40.42 is a specific code that can be used to specify a procedure 40.42 contains 2 index entries View the full Volume 3 40.* hierarchy Index entries containing 40.42: Dissection -- see also Excision neck, radical 40.40 bilateral 40.42 Excision lymph, lymphatic node (simple) NEC 40.29 cervical (deep) (with excision of scalene fat pad) 40.21 radical (including muscle and deep fascia) 40.40 bilateral 40.42