S40.92 - Unspecified superficial injury of upper arm S40.9 - Unspecified superficial injury of shoulder and upper arm S40.92 - Unspecified superficial injury of upper arm S40.921 - Unspecified superficial injury of right upper arm S40.922 - Unspecified superficial injury of left upper arm S40.929 - Unspecified superficial injury of unspecified upper arm