K09.1
BillableDevelopmental (nonodontogenic) cysts of oral region
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
Fluid-filled sacs in the mouth or jaw that develop from non-tooth tissues, such as remnants of embryonic structures.
Coding Tips
- •Differentiate from odontogenic cysts (K09.0) by confirming the cyst does not originate from tooth-forming tissues
- •Document the specific type if known (e.g., nasopalatine duct cyst, median palatal cyst)
Code Hierarchy
└K09Cysts of oral region, not elsewhere classified└K09.1Developmental (nonodontogenic) cysts of oral region
└K09.1Developmental (nonodontogenic) cysts of oral region