| K27 | Peptic ulcer, site unspecified | NON-BILLABLE CODE |
| K27.0 | Acute peptic ulcer, site unspecified, with hemorrhage | BILLABLE CODE |
| K27.1 | Acute peptic ulcer, site unspecified, with perforation | BILLABLE CODE |
| K27.2 | Acute peptic ulcer, site unspecified, with both hemorrhage and perforation | BILLABLE CODE |
| K27.3 | Acute peptic ulcer, site unspecified, without hemorrhage or perforation | BILLABLE CODE |
| K27.4 | Chronic or unspecified peptic ulcer, site unspecified, with hemorrhage | BILLABLE CODE |
| K27.6 | Chronic or unspecified peptic ulcer, site unspecified, with both hemorrhage and perforation | BILLABLE CODE |
| K27.7 | Chronic peptic ulcer, site unspecified, without hemorrhage or perforation | BILLABLE CODE |
| K27.9 | Peptic ulcer, site unspecified, unspecified as acute or chronic, without hemorrhage or perforation | BILLABLE CODE |
