2007 ICD-9-CM Procedure 92.21 Superficial radiation 92.21 is a specific code that can be used to specify a procedure 92.21 contains 3 index entries View the full Volume 3 92.* hierarchy 92.21 also known as: Contact radiation [up to 150 KVP] Index entries containing 92.21: Therapy radiation 92.29 contact (150 KVP or less) 92.21 low voltage (150 KVP or less) 92.21 superficial (150 KVP or less) 92.21