B51.8 ICD-10-CA code: Plasmodium vivax malaria with other complications
B51.8 is the ICD-10-CA code for “Plasmodium vivax malaria with other complications” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
B51.8Plasmodium vivax malaria with other complications
Short description: Plasmodium vivax mal w other comp
ICD-10-CA · Canada · Also written B518
Index terms
Entries in CIHI’s alphabetical index that lead to B51.8. Searching the index by the condition the note names is how coders reach this code.
- Malaria, malarial (fever), vivax (with), complications NEC
Notes for B51.8
As CIHI prints them, with any note B51.8 takes from the headings above it.
Includes
- Mixed infections of Plasmodium vivax with other Plasmodium species, except Plasmodium falciparumFrom B51 Plasmodium vivax malaria
- Diseases generally recognized as communicable or transmissibleFrom Chapter 1: Certain infectious and parasitic diseases (A00-B99)
Use additional code
Add a code for this detail when the note documents it.
- Use additional code (U82-U84) to identify resistance to antimicrobial drugsFrom Chapter 1: Certain infectious and parasitic diseases (A00-B99)
Excludes
Conditions classified elsewhere.
- When mixed with Plasmodium falciparum (B50.-)From B51 Plasmodium vivax malaria
- Amoebiasis (A06.-)other protozoal intestinal diseases (A07.-)From B50-B64 Protozoal diseases
- Carrier or suspected carrier of infectious disease (Z22.-)certain localized infections - see body system-related chaptersinfectious and parasitic diseases:• complicating pregnancy, childbirth and the puerperium [except obstetrical tetanus] (O98.-)• specific to the perinatal period [except tetanus neonatorum, whooping cough, congenital syphilis, perinatal gonococcal infection and perinatal human immunodeficiency virus [HIV] disease] (P35-P39)influenza and other acute respiratory infections (J00-J22)From Chapter 1: Certain infectious and parasitic diseases (A00-B99)
Where B51.8 sits
- 1ChapterChapter 1: Certain infectious and parasitic diseases (A00-B99)
- 2Block B50-B64Protozoal diseases
- 3Category B51Plasmodium vivax malaria
- 4Valid code B51.8Plasmodium vivax malaria with other complications
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code B51.8 mean?
B51.8 is the ICD-10-CA code for “Plasmodium vivax malaria with other complications” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is B51.8 in ICD-10-CA?
B51.8 sits under B51 Plasmodium vivax malaria, within B50-B64 Protozoal diseases, within Chapter 1: Certain infectious and parasitic diseases (A00-B99).
What coding notes apply to B51.8?
ICD-10-CA lists Includes, Excludes, Use additional code notes for B51.8, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.