S55.90 - Unspecified injury of unspecified blood vessel at forearm level S55.9 - Injury of unspecified blood vessel at forearm level S55.90 - Unspecified injury of unspecified blood vessel at forearm level S55.901 - Unspecified injury of unspecified blood vessel at forearm level, right arm S55.902 - Unspecified injury of unspecified blood vessel at forearm level, left arm S55.909 - Unspecified injury of unspecified blood vessel at forearm level, unspecified arm