Echinococcus granulosus infection, unspecified

This code represents an infection caused by the larval stage of the tapeworm Echinococcus granulosus, commonly known as cystic echinococcosis or hydatid disease. The infection typically results in the formation of hydatid cysts, most often in the liver and lungs, but can occur in various organs.

Use this code when documentation confirms an Echinococcus granulosus infection, but the specific site of the infection is not specified. This code is appropriate when the diagnostic workup (e.g., serology, imaging) indicates the presence of hydatid disease without pinpointing the exact organ involvement.

• Avoid using this code if the specific organ involved (e.g., liver, lung, brain) is documented; instead, use a more specific code from the 122 series.
• Ensure documentation clearly states Echinococcus granulosus as the causative agent, rather than other Echinococcus species.
• Consider sequencing this code as a primary diagnosis if it is the reason for the encounter, or as a secondary diagnosis if it's a co-morbidity.