Lac w/o fb of abd wall, unsp q w penet perit cav, init

This code signifies a cut or tear through the skin and muscle layers of the abdomen, extending into the peritoneal cavity, the space containing abdominal organs. The injury does not involve a foreign object embedded in the wound and the specific location on the abdominal wall is not documented.

Use this code for initial treatment of an open abdominal wall injury that clearly states penetration into the peritoneal cavity, but the specific quadrant (e.g., upper right, lower left) is not specified in the medical record. This is appropriate for traumatic lacerations where the depth of injury is confirmed to reach the abdominal cavity.

• Ensure documentation explicitly states "penetration into peritoneal cavity" to justify this code.
• Avoid this code if a foreign body is present; use a more specific code from the S31.62- series.
• If the abdominal quadrant is specified, select a more precise code from the S31.611- to S31.614- series.