S56.91 - Strain of unspecified muscles, fascia and tendons at forearm level S56.9 - Injury of unspecified muscles, fascia and tendons at forearm level S56.91 - Strain of unspecified muscles, fascia and tendons at forearm level S56.911 - Strain of unspecified muscles, fascia and tendons at forearm level, right arm S56.912 - Strain of unspecified muscles, fascia and tendons at forearm level, left arm S56.919 - Strain of unspecified muscles, fascia and tendons at forearm level, unspecified arm