Plasmodium falciparum malaria (B50) ICD-10-CM
The B50 code range covers plasmodium falciparum malaria with 4 ICD-10-CM diagnosis codes. 3 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- mixed infections of Plasmodium falciparum with any other Plasmodium species
Codes in the B50 Range 4 codes · 3 billable
About the B50 Code Range
The ICD-10 code section B50 is used to classify infections caused by Plasmodium falciparum malaria, a serious parasitic disease. It helps specifically identify the type and severity of this malaria, including cerebral complications and other severe forms.
This section includes codes like B50.0 for Plasmodium falciparum malaria with cerebral complications, commonly referred to as cerebral malaria or falciparum malaria. Code B50.8 covers other severe and complicated cases, including conditions also called malarial shock lung, black water fever, or simply falciparum malaria with complications. The unspecified code B50.9 is used when the specific details aren’t documented but may relate to various terms like algid malaria, malarial fever, or malignant tertian fever. Using these codes ensures clear identification of Plasmodium falciparum malaria variants for accurate diagnosis, treatment planning, and reporting, especially when conditions range from typical fever patterns to life-threatening cerebral involvement.
Questions About This Page
How many billable codes are in the B50 range?
Of the 4 codes in this range, 3 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the B50 range classify?
The range classifies plasmodium falciparum malaria. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
