Monday, October 26, 2026

ICD-10-CM code S31.12A specifies a laceration with a foreign body in the abdominal wall flank without penetration into the peritoneal cavity. Assigning this code requires clear documentation that the wound is superficial to the peritoneum despite containing foreign debris like glass or metal. The 7th character A identifies this as the initial encounter for active medical treatment. Proper reporting ensures accurate tracking of superficial abdominal trauma and secondary infection risks.