S54.8 - Injury of other nerves at forearm level S54 - Injury of nerves at forearm level S54.8 - Injury of other nerves at forearm level S54.8X - Unspecified injury of other nerves at forearm level S54.8X1 - Unspecified injury of other nerves at forearm level, right arm S54.8X2 - Unspecified injury of other nerves at forearm level, left arm S54.8X9 - Unspecified injury of other nerves at forearm level, unspecified arm