2026 ICD-10-CM Diagnosis Code B57.0Acute Chagas' disease with heart involvement
ICD-10-CM Codes›A00–B99›B50-B64›B57
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
B57.0 is a billable ICD-10-CM diagnosis code for acute Chagas' disease with heart involvement. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 314 through 316. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 6 closely related codes. Coders also document this condition as acute Chagas' disease. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Parasitic, other specified and unspecified infections.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acute Chagas' disease
- Acute Chagas' disease with heart involvement
- Chagas' disease with heart involvement
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Acute Chagas' disease with myocarditis
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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.
Convert B57.0 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About B57.0Overview
What is the ICD-10 code for acute Chagas' disease with heart involvement?
The ICD-10-CM code for acute Chagas' disease with heart involvement is B57.0 (sometimes written as B570). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is B57.0 (Chagas' disease) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report acute Chagas' disease with heart involvement on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does B57.0 group to?
When acute Chagas' disease with heart involvement is the principal diagnosis on an inpatient stay, it groups to MS-DRG 314, 315, 316, with relative weights from 0.6821 to 2.0852 depending on complications. Higher weights mean higher Medicare reimbursement.
Is B57.0 a CC or MCC?
CMS lists B57.0 as a CC (complication or comorbidity) for FY 2026. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 6 closely related codes in its exclusion list.
What is the ICD-9 equivalent of B57.0?
Under the General Equivalence Mappings, acute Chagas' disease with heart involvement converts to ICD-9-CM 086.0 (Chagas disease of heart). The mapping is approximate, so confirm the match fits the documentation.
