Echinococcus multilocularis infection of liver

This code signifies an infection of the liver caused by the larval stage of the tapeworm Echinococcus multilocularis. This parasitic condition, known as alveolar echinococcosis, leads to the formation of tumor-like lesions in the liver parenchyma. It is a severe, often progressive disease that can metastasize to other organs.

Use this code when documentation confirms a diagnosis of alveolar echinococcosis specifically affecting the liver. This diagnosis is typically supported by imaging studies (e.g., CT, MRI, ultrasound) showing characteristic liver lesions, serological tests for Echinococcus antibodies, and/or histopathological confirmation from biopsy.

• Ensure documentation specifies Echinococcus multilocularis and not other Echinococcus species (e.g., granulosus).
• Code any associated liver failure or other complications separately.
• Do not use this code for unspecified echinococcosis or echinococcosis affecting other sites; specific codes exist for those scenarios.