2027 ICD-10-CM Diagnosis Code B57.39Other digestive system involvement in Chagas' disease
ICD-10-CM Codes›A00–B99›B50-B64›B57
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Chronic Condition
B57.39 is a billable ICD-10-CM diagnosis code for other digestive system involvement in Chagas' disease. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) 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 achalasia due to 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.
- Achalasia due to Chagas disease
- Achalasia of esophagus
- Acquired achalasia of esophagus
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to B57.39: its own notes plus those printed at B57, block B50-B64, and Chapter 1. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- American trypanosomiasis
- infection due to Trypanosoma cruzi
- diseases generally recognized as communicable or transmissible
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- carrier or suspected carrier of infectious disease (Z22.-)
- certain localized infections - see body system-related chapters
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- infectious and parasitic diseases specific to the perinatal period (P35-P39)
- influenza and other acute respiratory infections (J00-J22)
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code to identify resistance to antimicrobial drugs (Z16.-)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name B57.39, its category, or a range that includes it.
Applicable To 1
These notes mention B57.39.
- O98.6 Protozoal diseases complicating pregnancy, childbirth and the puerperium
Code First 1
These codes say to code first a condition named in the note, and B57.39 is one of the conditions named.
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.
Clinical InformationClinical
Chagas Disease
infection with the protozoan parasite trypanosoma cruzi, a form of trypanosomiasis endemic in central and south america. it is named after the brazilian physician carlos chagas, who discovered the parasite. infection by the parasite (positive serologic result only) is distinguished from the clinical manifestations that develop years later, such as destruction of parasympathetic ganglia; chagas cardiomyopathy; and dysfunction of the esophagus or colon.
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 B57.39 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About B57.39Overview
What is the ICD-10 code for other digestive system involvement in Chagas' disease?
The ICD-10-CM code for other digestive system involvement in Chagas' disease is B57.39 (sometimes written as B5739). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is B57.39 (Chagas' disease (chronic) with digestive system involvement) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other digestive system involvement in Chagas' disease on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does B57.39 group to?
When other digestive system involvement in Chagas' disease is the principal diagnosis on an inpatient stay, it groups to MS-DRG 867, 869, 868, with relative weights from 0.6784 to 2.1855 depending on complications. Higher weights mean higher Medicare reimbursement.
Is B57.39 a CC or MCC?
CMS lists B57.39 as a CC (complication or comorbidity) for FY 2027. 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.
Can B57.39 be reported with a code from A06?
Not as a rule. The Excludes1 note at block B50-B64, which applies to B57.39, lists "amebiasis (A06.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
