ICD-10-CM > C00-D49 > D10-D36 > D13 > D13.9 > D13.99 D13.99 Benign neoplasm of ill-defined sites within the digestive system Billable/Specific Copy Code Copy Description Applicable To Benign neoplasm of digestive system NOSBenign neoplasm of intestine NOSBenign neoplasm of spleen