B51 Plasmodium vivax malaria

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Plasmodium vivax malaria is B51 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
B50-B64: Protozoal diseases (B50-B64)
Category B51
4 codes (3 billable)
FY2026 Status
Stable since FY2024
Includes
  • mixed infections of Plasmodium vivax with other Plasmodium species, except Plasmodium falciparum
Excludes1
Not coded here. These conditions should NOT be coded together with B51.
  • plasmodium vivax with Plasmodium falciparum (B50.-)

Official Coding Guidelines

HIV Infections (TOC entry)

a. Human Immunodeficiency Virus (HIV) Infections .............................................................. 19

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.1.a
Infectious agents causing diseases in other chapters (TOC)

b. Infectious agents as the cause of diseases classified to other chapters ................................. 22

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.1.b

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference B51 with the canonical source and edition:

B51 — Plasmodium vivax malaria. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/B51

Canonical URL: https://icd10codingpro.com/codes/B51

Related Codes

More Specific Codes

B51.0 Plasmodium vivax malaria with rupture of spleen B51.8 Plasmodium vivax malaria with other complications B51.9 Plasmodium vivax malaria without complication

All Codes in B51

Every most-specific code under B51 Plasmodium vivax malaria (3 codes):

Show the complete B51 code list
B51.0 Plasmodium vivax malaria with rupture of spleen B51.8 Plasmodium vivax malaria with other complications B51.9 Plasmodium vivax malaria without complication
Search all 70,000+ ICD-10-CM codes →
Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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