Echinococcosis, other and unspecified

This code signifies an infection caused by tapeworm larvae of the genus Echinococcus, specifically when the species is not precisely identified or when it's an uncommon or atypical form of echinococcosis. It represents a parasitic disease characterized by the development of hydatid cysts in various organs, most commonly the liver and lungs.

Use this code when the medical record indicates a diagnosis of echinococcosis but does not specify the particular Echinococcus species (e.g., E. granulosus, E. multilocularis). It is appropriate for cases documented as "echinococcosis, NOS" or "other echinococcosis" without further detail. Documentation supporting this code would include pathology reports, imaging studies, or serology confirming echinococcal infection without species identification.

• Avoid using this code if a specific Echinococcus species is documented; instead, use the more precise code from the 122.0-122.7 range.
• Always review the entire medical record for any mention of the specific Echinococcus species before defaulting to this unspecified code.
• Consider sequencing this code as the primary diagnosis if the echinococcosis is the reason for the encounter or hospitalization.