ICD-10-CM > A00-B99 > B50-B64 > B57 > B57.3 B57.3 Chagas' disease (chronic) with digestive system involvement Non-Billable/Non-Specific Codes B57.30Chagas' disease with digestive system involvement, unspecifiedB57.31Megaesophagus in Chagas' diseaseB57.32Megacolon in Chagas' diseaseB57.39Other digestive system involvement in Chagas' disease