Portal pyemia

This code represents a severe systemic infection characterized by the presence of pus-forming bacteria in the portal venous system, leading to the formation of multiple abscesses, often in the liver. It is a serious complication typically arising from intra-abdominal infections such as appendicitis, diverticulitis, or inflammatory bowel disease.

Use this code when documentation clearly indicates a diagnosis of portal pyemia, often presenting with fever, chills, right upper quadrant pain, and signs of sepsis. Supporting documentation should include evidence of portal vein involvement, such as imaging findings (e.g., ultrasound, CT scan showing portal vein thrombosis or liver abscesses) and positive blood cultures or cultures from abscess drainage.

• Always code the underlying cause of the portal pyemia, such as appendicitis or diverticulitis, first.
• Consider additional codes for associated conditions like liver abscess (572.0) or sepsis (038.x).
• Ensure documentation differentiates portal pyemia from other forms of pyemia or septicemia without portal vein involvement.