S44.9 - Injury of unspecified nerve at shoulder and upper arm level S44 - Injury of nerves at shoulder and upper arm level S44.9 - Injury of unspecified nerve at shoulder and upper arm level S44.90 - Injury of unspecified nerve at shoulder and upper arm level, unspecified arm S44.91 - Injury of unspecified nerve at shoulder and upper arm level, right arm S44.92 - Injury of unspecified nerve at shoulder and upper arm level, left arm