S96.91 - Strain of unspecified muscle and tendon at ankle and foot level S96.9 - Injury of unspecified muscle and tendon at ankle and foot level S96.91 - Strain of unspecified muscle and tendon at ankle and foot level S96.911 - Strain of unspecified muscle and tendon at ankle and foot level, right foot S96.912 - Strain of unspecified muscle and tendon at ankle and foot level, left foot S96.919 - Strain of unspecified muscle and tendon at ankle and foot level, unspecified foot