B57
Chagas' disease
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 7 never code together
A00-B99chapter
Excludes1
- certain localized infections - see body system-related chapters
Excludes2
- carrier or suspected carrier of infectious disease (Z22.-)Z22.-
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)O98.-
- infectious and parasitic diseases specific to the perinatal period (P35-P39)P35-P39
- influenza and other acute respiratory infections (J00-J22)J00-J22
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 4
Index entries leading here filed at null
No alphabetic index entry points at this code.
Subordinate codes 6
B57.0 Acute Chagas' disease with heart involvement B57.1 Acute Chagas' disease without heart involvement B57.2 Chagas' disease (chronic) with heart involvement B57.3 Chagas' disease (chronic) with digestive system involvement B57.4 Chagas' disease (chronic) with nervous system involvement B57.5 Chagas' disease (chronic) with other organ involvement
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.