ICD-10-CM > A00-B99 > B50-B64 > B51 B51 Plasmodium vivax malaria Non-Billable/Non-Specific Includes mixed infections of Plasmodium vivax with other Plasmodium species, except Plasmodium falciparum Type 1 Excludes plasmodium vivax with Plasmodium falciparum (B50.-) Codes B51.0Plasmodium vivax malaria with rupture of spleenB51.8Plasmodium vivax malaria with other complicationsB51.9Plasmodium vivax malaria without complication