S86.209 - Unspecified injury of muscle(s) and tendon(s) of anterior muscle group at lower leg level, unspecified leg S86.2 - Injury of muscle(s) and tendon(s) of anterior muscle group at lower leg level S86.20 - Unspecified injury of muscle(s) and tendon(s) of anterior muscle group at lower leg level S86.209 - Unspecified injury of muscle(s) and tendon(s) of anterior muscle group at lower leg level, unspecified leg