2026 ICD-10-CM Diagnosis Code B57Chagas' disease

ICD-10-CM Codes›A00–B99›B50-B64›B57

ICD-10-CM B57
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

B57 is a non-billable ICD-10-CM category code for Chagas' disease, so it cannot be submitted on claims. Use a more specific code from this category instead, such as B57.0, B57.1, B57.2, and B57.30.

Code Identity

ICD-10-CM Code
B57
Billable Status
No — Non-Billable Category
Code Describes
Chagas' disease
Chapter
B50-B64
Protozoal diseases

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionB50-B64Protozoal diseases
CategoryB57Chagas' disease
This CodeB57Chagas' disease

Specific Coding for Chagas' diseaseOverview

Non-specific codes like B57 require more characters. Use one of these billable codes instead:

  • Use B57.0 for Acute Chagas' disease with heart involvement

  • Use B57.1 for Acute Chagas' disease without heart involvement

  • Use B57.2 for Chagas' disease (chronic) with heart involvement

  • B57.3 for Chagas' disease (chronic) with digestive system involvement

  • Use B57.30 for Chagas' disease with digestive system involvement, unspecified

  • Use B57.31 for Megaesophagus in Chagas' disease

  • Use B57.32 for Megacolon in Chagas' disease

  • Use B57.39 for Other digestive system involvement in Chagas' disease

  • B57.4 for Chagas' disease (chronic) with nervous system involvement

  • Use B57.40 for Chagas' disease with nervous system involvement, unspecified

  • Use B57.41 for Meningitis in Chagas' disease

  • Use B57.42 for Meningoencephalitis in Chagas' disease

  • Use B57.49 for Other nervous system involvement in Chagas' disease

  • Use B57.5 for Chagas' disease (chronic) with other organ involvement

Tabular List NotesGuidance

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

Includes

  • American trypanosomiasis
  • infection due to Trypanosoma cruzi

Patient EducationClinical

Chagas Disease

Chagas disease, or American trypanosomiasis, is an illness that can cause serious heart and stomach problems. It is caused by a parasite. Chagas disease is common in Latin America, especially in poor, rural areas. It can also be found in the United States, most often in people who were infected before they moved to the U.S.

The full article covers:

  • What is Chagas disease?
  • What causes Chagas disease?
  • Who is more likely to develop Chagas disease?
  • What are the symptoms of Chagas disease?
  • How is Chagas disease diagnosed?
  • What are the treatments for Chagas disease?
  • Can Chagas disease be prevented?

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 B57Overview

Is B57 (Chagas' disease) a billable code?

No. This is a category header that groups the codes for Chagas' disease, and headers cannot be submitted on claims. Claims for Chagas' disease need a more specific code from this category, such as B57.0, B57.1, and B57.2.