Cryptosporidiosis

This code represents an infection of the gastrointestinal tract caused by the parasite Cryptosporidium. It typically manifests as acute, watery diarrhea, abdominal cramps, nausea, and vomiting, and can be particularly severe in immunocompromised individuals.

Assign this code when documentation confirms a diagnosis of cryptosporidiosis, often identified through stool ova and parasite examination or specific antigen detection tests. It is appropriate for both acute and chronic presentations of the infection.

• Ensure the documentation specifies Cryptosporidium as the causative agent to differentiate from other parasitic or bacterial diarrheas.
• Consider co-occurring conditions, especially immunocompromised states (e.g., HIV/AIDS), which may require additional coding.
• Do not confuse with other protozoal infections causing diarrhea, such as giardiasis (A07.1) or amebiasis (A06.-).