2007 ICD-9-CM Procedure 88.21 Skeletal x-ray of shoulder and upper arm 88.21 is a specific code that can be used to specify a procedure 88.21 contains 2 index entries View the full Volume 3 88.* hierarchy Index entries containing 88.21: Radiography (diagnostic) NEC 88.39 shoulder (skeletal) 88.21 soft tissue 88.35 upper arm (skeletal) 88.21 soft tissue 88.35