S66.91 - Strain of unspecified muscle, fascia and tendon at wrist and hand level S66.9 - Injury of unspecified muscle, fascia and tendon at wrist and hand level S66.91 - Strain of unspecified muscle, fascia and tendon at wrist and hand level S66.911 - Strain of unspecified muscle, fascia and tendon at wrist and hand level, right hand S66.912 - Strain of unspecified muscle, fascia and tendon at wrist and hand level, left hand S66.919 - Strain of unspecified muscle, fascia and tendon at wrist and hand level, unspecified hand