| K50 | Crohn's disease [regional enteritis] | NON-BILLABLE CODE |
| K50.0 | Crohn's disease of small intestine | NON-BILLABLE CODE |
| K50.00 | Crohn's disease of small intestine without complications | BILLABLE CODE |
| K50.01 | Crohn's disease of small intestine with complications | NON-BILLABLE CODE |
| K50.011 | Crohn's disease of small intestine with rectal bleeding | BILLABLE CODE |
| K50.012 | Crohn's disease of small intestine with intestinal obstruction | BILLABLE CODE |
| K50.013 | Crohn's disease of small intestine with fistula | BILLABLE CODE |
| K50.014 | Crohn's disease of small intestine with abscess | BILLABLE CODE |
| K50.018 | Crohn's disease of small intestine with other complication | BILLABLE CODE |
| K50.019 | Crohn's disease of small intestine with unspecified complications | BILLABLE CODE |
| K50.1 | Crohn's disease of large intestine | NON-BILLABLE CODE |
| K50.10 | Crohn's disease of large intestine without complications | BILLABLE CODE |
| K50.11 | Crohn's disease of large intestine with complications | NON-BILLABLE CODE |
| K50.111 | Crohn's disease of large intestine with rectal bleeding | BILLABLE CODE |
| K50.112 | Crohn's disease of large intestine with intestinal obstruction | BILLABLE CODE |
| K50.113 | Crohn's disease of large intestine with fistula | BILLABLE CODE |
| K50.114 | Crohn's disease of large intestine with abscess | BILLABLE CODE |
| K50.118 | Crohn's disease of large intestine with other complication | BILLABLE CODE |
| K50.119 | Crohn's disease of large intestine with unspecified complications | BILLABLE CODE |
| K50.8 | Crohn's disease of both small and large intestine | NON-BILLABLE CODE |
| K50.80 | Crohn's disease of both small and large intestine without complications | BILLABLE CODE |
| K50.81 | Crohn's disease of both small and large intestine with complications | NON-BILLABLE CODE |
| K50.812 | Crohn's disease of both small and large intestine with intestinal obstruction | BILLABLE CODE |
| K50.813 | Crohn's disease of both small and large intestine with fistula | BILLABLE CODE |
| K50.814 | Crohn's disease of both small and large intestine with abscess | BILLABLE CODE |
| K50.818 | Crohn's disease of both small and large intestine with other complication | BILLABLE CODE |
| K50.819 | Crohn's disease of both small and large intestine with unspecified complications | BILLABLE CODE |
| K50.9 | Crohn's disease, unspecified | NON-BILLABLE CODE |
| K50.90 | Crohn's disease, unspecified, without complications | BILLABLE CODE |
| K50.91 | Crohn's disease, unspecified, with complications | NON-BILLABLE CODE |
| K50.911 | Crohn's disease, unspecified, with rectal bleeding | BILLABLE CODE |
| K50.912 | Crohn's disease, unspecified, with intestinal obstruction | BILLABLE CODE |
| K50.913 | Crohn's disease, unspecified, with fistula | BILLABLE CODE |
| K50.914 | Crohn's disease, unspecified, with abscess | BILLABLE CODE |
| K50.918 | Crohn's disease, unspecified, with other complication | BILLABLE CODE |
| K50.919 | Crohn's disease, unspecified, with unspecified complications | BILLABLE CODE |
