Vivax malaria [benign tertian]

This code identifies an infection caused by the Plasmodium vivax parasite, a specific type of malaria characterized by recurrent fever spikes every 48 hours (tertian fever). It is generally considered less severe than falciparum malaria but can still cause significant morbidity.

Use this code when documentation explicitly states a diagnosis of vivax malaria, benign tertian malaria, or malaria due to Plasmodium vivax. Confirmation typically involves microscopic identification of P. vivax parasites in blood smears or positive rapid diagnostic tests specific for P. vivax antigens.

• Differentiate carefully from other forms of malaria; documentation must specify P. vivax.
• Consider an additional code for any associated complications, such as anemia.
• Ensure the geographic exposure history aligns with areas endemic for vivax malaria if available.