S36.40 Unspecified injury of small intestineNon-billable header with 3 child codes.
S36.400 Unspecified injury of duodenumS36.408 Unspecified injury of other part of small intestineS36.409 Unspecified injury of unspecified part of small intestineS38.1 Crushing injury of abdomen, lower back, and pelvis ("injury to intra-abdominal organs (S36.-)")S36.39 Other injury of stomachS36.39XA Other injury of stomach, initial encounterS36.39XD Other injury of stomach, subsequent encounterS36.39XS Other injury of stomach, sequelaS36.4 Injury of small intestineS36.40 Unspecified injury of small intestine (this code)S36.400 Unspecified injury of duodenumS36.400A Unspecified injury of duodenum, initial encounterS36.400D Unspecified injury of duodenum, subsequent encounterS36.400S Unspecified injury of duodenum, sequelaS36.408 Unspecified injury of other part of small intestine