ICD-10-CM · Chapter 11 · K00-K95
K09 Cysts of oral region, not elsewhere classified
Includes
- lesions showing histological features both of aneurysmal cyst and of another fibro-osseous lesion
Excludes 2 (not included here)
- cysts of jaw (M27.0-, M27.4-)
- radicular cyst (K04.8)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| K09..0 | Developmental odontogenic cysts | Yes |
| K09..1 | Developmental (nonodontogenic) cysts of oral region | Yes |
| K09..8 | Other cysts of oral region, not elsewhere classified | Yes |
| K09..9 | Cyst of oral region, unspecified | Yes |
Last reviewed: September 2026