ICD-10-CM > C00-D49 > D10-D36 > D13 D13 Benign neoplasm of other and ill-defined parts of digestive system Non-Billable/Non-Specific Type 1 Excludes benign stromal tumors of digestive system (D21.4) Codes D13.0Benign neoplasm of esophagusD13.1Benign neoplasm of stomachD13.2Benign neoplasm of duodenumD13.3Benign neoplasm of other and unspecified parts of small intestineD13.30Benign neoplasm of unspecified part of small intestineD13.39Benign neoplasm of other parts of small intestineD13.4Benign neoplasm of liverD13.5Benign neoplasm of extrahepatic bile ductsD13.6Benign neoplasm of pancreasD13.7Benign neoplasm of endocrine pancreasD13.9Benign neoplasm of ill-defined sites within the digestive systemD13.91Familial adenomatous polyposisD13.99Benign neoplasm of ill-defined sites within the digestive system