Lac with fb ofbd wall, unsp flank with penet perit cav, init

This code signifies a deep cut or tear in the abdominal wall of an unspecified flank region, where a foreign object has entered the wound and breached the peritoneal cavity. This injury implies a significant risk of internal organ damage and infection due to the penetration into the abdominal cavity.

Use this code for initial encounters involving penetrating trauma to the flank, such as from a stab wound or impalement, where a foreign body is present and imaging or surgical exploration confirms peritoneal penetration. This code is appropriate when the specific flank (right or left) is not documented.

• Ensure documentation clearly states "laceration with foreign body" and "penetration into peritoneal cavity."
• Verify this is the "initial encounter" for treatment of this specific injury.
• If the specific flank is known, a more precise code from the S31.62 series should be used.