2026 ICD-10-CM Diagnosis Code B57.5Chagas' disease (chronic) with other organ involvement
ICD-10-CM Codes›A00–B99›B50-B64›B57
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Chronic Condition
B57.5 is a billable ICD-10-CM diagnosis code for Chagas' disease (chronic) with other organ involvement. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 867 through 869. 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 69 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
- American trypanosomiasis affecting skin
- Chagas' disease with other organ involvement
- Chagas' exanthem
- Infective panniculitis
- Subcutaneous lipochagoma
- Trypanosomiasis affecting skin
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 B57.5 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About B57.5Overview
What is the ICD-10 code for Chagas' disease (chronic) with other organ involvement?
The ICD-10-CM code for Chagas' disease (chronic) with other organ involvement is B57.5 (sometimes written as B575). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is B57.5 (Chagas' disease) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report Chagas' disease (chronic) with other organ involvement on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does B57.5 group to?
When Chagas' disease (chronic) with other organ involvement is the principal diagnosis on an inpatient stay, it groups to MS-DRG 867, 868, 869, with relative weights from 0.7297 to 2.0932 depending on complications. Higher weights mean higher Medicare reimbursement.
Is B57.5 a CC or MCC?
CMS lists B57.5 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 69 closely related codes in its exclusion list.
What is the ICD-9 equivalent of B57.5?
Under the General Equivalence Mappings, Chagas' disease (chronic) with other organ involvement converts to ICD-9-CM 086.1 (Chagas dis of oth organ). The mapping is approximate, so confirm the match fits the documentation.
