D13.3Benign neoplasm of other and unspecified parts of small intestine

D13.3 is the ICD-10-CM diagnosis code for benign neoplasm of other and unspecified parts of small intestine. It belongs to category D13 (benign neoplasm of other and ill-defined parts of digestive system), block D10-D36 (benign neoplasms, except benign neuroendocrine tumors) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within D13, choose D13.3 (other and unspecified parts of small intestine) only when documentation doesn't support a more specific option: esophagus (D13.0), stomach (D13.1), duodenum (D13.2), liver (D13.4), extrahepatic bile ducts (D13.5), pancreas (D13.6), endocrine pancreas (D13.7) and ill-defined sites within the digestive system (D13.9).

To report this condition, pick the subcode that matches the documentation: D13.30 (intestine) and D13.39 (intestine).

Don't report D13.3 together with the conditions in its Excludes1 note: benign carcinoid tumors of the small intestine (D3A.01-) and benign neoplasm of ileocecal valve (D12.0).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.