S86.919 - Strain of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg S86.9 - Injury of unspecified muscle and tendon at lower leg level S86.91 - Strain of unspecified muscle and tendon at lower leg level S86.919 - Strain of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg