K09.0
ICD-10BillableDevelopmental odontogenic cysts
Official ICD-10-CM descriptor (FY2026)
Developmental odontogenic cysts
K09.0 is valid for submission on a claim — CMS flags it as a billable, specific code.
Inclusion terms
- Dentigerous cyst
- Eruption cyst
- Follicular cyst
- Gingival cyst
- Lateral periodontal cyst
- Primordial cyst
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- keratocysts (D16.4, D16.5)
- odontogenic keratocystic tumors (D16.4, D16.5)
Related codes in K09
Where this code sits
- Parent code
- K09
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.