| K09 | Cysts of oral region, not elsewhere classified | NON-BILLABLE CODE |
| K09.1 | Developmental (nonodontogenic) cysts of oral region | BILLABLE CODE |
| K09.8 | Other cysts of oral region, not elsewhere classified | BILLABLE CODE |
| K09.9 | Cyst of oral region, unspecified | BILLABLE CODE |
