ICD-10-CM 2027
ICD-10 code for simian malaria
From the official ICD-10-CM alphabetic index entry “Simian malaria”. Page updated September 29, 2026.
About coding simian malaria
The ICD-10-CM code for simian malaria is B53.1 (Malaria due to simian plasmodia).
Within B53 (other specified malaria), B53.1 is specifically for malaria due to simian plasmodia. Related codes cover Plasmodium ovale malaria (B53.0) and other malaria, not elsewhere classified (B53.8).
Don't report B53.1 together with the conditions in its Excludes1 note: Malaria due to simian plasmodia with Plasmodium falciparum (B50.-), Malaria due to simian plasmodia with Plasmodium malariae (B52.-), Malaria due to simian plasmodia with Plasmodium ovale (B53.0) and Malaria due to simian plasmodia with Plasmodium vivax (B51.-).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
Don't confuse with (Excludes1 for B53.1)
Common questions about simian malaria ICD-10 codes
What is the ICD-10 code for simian malaria?
- B53.1 — Malaria due to simian plasmodia.
Is B53.1 billable?
- Yes. B53.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can B53.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict B53.1 as a principal diagnosis.
Is B53.1 a CC or MCC?
- B53.1 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.