2026 ICD-10-CM Diagnosis Code B50Plasmodium falciparum malaria

ICD-10-CM Codes›A00–B99›B50-B64›B50

ICD-10-CM B50
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

B50 is a non-billable ICD-10-CM category code for plasmodium falciparum malaria, so it cannot be submitted on claims. Use a more specific code from this category instead, such as B50.0, B50.8, and B50.9.

Code Identity

ICD-10-CM Code
B50
Billable Status
No — Non-Billable Category
Code Describes
Plasmodium falciparum malaria
Chapter
B50-B64
Protozoal diseases

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionB50-B64Protozoal diseases
CategoryB50Plasmodium falciparum malaria
This CodeB50Plasmodium falciparum malaria

Specific Coding for Plasmodium falciparum malariaOverview

Non-specific codes like B50 require more characters. Use one of these billable codes instead:

  • Use B50.0 for Plasmodium falciparum malaria with cerebral complications

  • Use B50.8 for Other severe and complicated Plasmodium falciparum malaria

  • Use B50.9 for Plasmodium falciparum malaria, unspecified

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Includes

  • mixed infections of Plasmodium falciparum with any other Plasmodium species

Patient EducationClinical

Malaria

Malaria is a serious disease caused by a parasite. You get it when an infected mosquito bites you. Malaria is a major cause of death worldwide, but it is almost wiped out in the United States. The disease is mostly a problem in developing countries with warm climates. If you travel to these countries, you are at risk.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About B50Overview

Is B50 (Plasmodium falciparum malaria) a billable code?

No. This is a category header that groups the codes for plasmodium falciparum malaria, and headers cannot be submitted on claims. Claims for plasmodium falciparum malaria need a more specific code from this category, such as B50.0, B50.8, and B50.9.