Injury of facial nerve, right side, initial encounter

This code signifies damage to the right facial nerve, which controls muscles of facial expression, taste sensation from the anterior two-thirds of the tongue, and lacrimal and salivary gland function. Injuries can result in facial paralysis, weakness, or sensory disturbances on the right side of the face.

Apply this code for the initial treatment of a newly diagnosed injury to the right facial nerve. Documentation should clearly state the laterality (right side) and the acute nature of the injury, often following trauma, surgery, or an inflammatory process.

• Ensure documentation specifies "right side" to avoid unspecified laterality codes.
• Distinguish between injury (S04.51XA) and nerve disorders like Bell's Palsy (G51.0), which is a non-traumatic paralysis.
• Sequence this code as the primary diagnosis when the facial nerve injury is the reason for the encounter.