S86.199 - Other injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, unspecified leg S86.1 - Injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level S86.19 - Other injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level S86.199 - Other injury of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, unspecified leg