Echinococcus granulosus infection of lung

This code signifies a parasitic infection of the lung caused by the larval stage of the tapeworm Echinococcus granulosus, commonly known as cystic echinococcosis or hydatid disease. It is characterized by the formation of hydatid cysts within the pulmonary parenchyma.

Assign this code when documentation confirms a diagnosis of pulmonary hydatidosis due to Echinococcus granulosus. This typically follows imaging studies (e.g., CT scan, X-ray) showing characteristic lung cysts, often supported by serological tests or histopathological findings.

• Ensure the documentation specifies the lung as the affected organ; other organ involvement would require a different code.
• Do not confuse with alveolar echinococcosis (B67.0), which is caused by Echinococcus multilocularis.
• Code any associated complications, such as rupture of the cyst or secondary bacterial infection, in addition to this primary diagnosis.