K09
K09: Cysts of oral region, not elsewhere classified
Non-billable headerICD-10-CM
K09 is a non-billable header ICD-10-CM code for cysts of oral region, not elsewhere classified. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes2: not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
Includes
Conditions this code covers.
- lesions showing histological features both of aneurysmal cyst and of another fibro-osseous lesion
Other codes that can never be billed with K09
Their own Excludes1 notes name this code, so the conflict is not listed above.
- M27.4Other and unspecified cysts of jaw
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead K09
4 child codes. Green means billable.