| K28 | Gastrojejunal ulcer | NON-BILLABLE CODE |
| K28.1 | Acute gastrojejunal ulcer with perforation | BILLABLE CODE |
| K28.2 | Acute gastrojejunal ulcer with both hemorrhage and perforation | BILLABLE CODE |
| K28.3 | Acute gastrojejunal ulcer without hemorrhage or perforation | BILLABLE CODE |
| K28.4 | Chronic or unspecified gastrojejunal ulcer with hemorrhage | BILLABLE CODE |
| K28.5 | Chronic or unspecified gastrojejunal ulcer with perforation | BILLABLE CODE |
| K28.6 | Chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforation | BILLABLE CODE |
| K28.7 | Chronic gastrojejunal ulcer without hemorrhage or perforation | BILLABLE CODE |
| K28.9 | Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation | BILLABLE CODE |
