S31.83 - Open wound of anus S31.8 - Open wound of other parts of abdomen, lower back and pelvis S31.83 - Open wound of anus S31.831 - Laceration without foreign body of anus S31.832 - Laceration with foreign body of anus S31.833 - Puncture wound without foreign body of anus S31.834 - Puncture wound with foreign body of anus S31.835 - Open bite of anus S31.839 - Unspecified open wound of anus