S31.105 - Unspecified open wound of abdominal wall, periumbilic region without penetration into peritoneal cavity S31.1 - Open wound of abdominal wall without penetration into peritoneal cavity S31.10 - Unspecified open wound of abdominal wall without penetration into peritoneal cavity S31.105 - Unspecified open wound of abdominal wall, periumbilic region without penetration into peritoneal cavity