G51.9
BillableDisorder of facial nerve, unspecified
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A problem affecting the facial nerve that does not fit into more specific categories or when the exact type of facial nerve disorder is not documented.
Coding Tips
- •This is a non-specific code; use only when the specific facial nerve disorder cannot be determined from documentation
- •Review the medical record carefully to identify more specific diagnoses such as Bell's palsy, hemifacial spasm, or myokymia
Code Hierarchy
└G51Facial nerve disorders└G51.9Disorder of facial nerve, unspecified
└G51.9Disorder of facial nerve, unspecified