Oth disp fx of first cervcal vert, subs for fx w delay heal

This code signifies a fracture of the atlas (first cervical vertebra) that is not in its normal anatomical position, and the patient is presenting for follow-up care because the fracture is not healing at the expected rate. It indicates a persistent healing challenge for a previously diagnosed and treated C1 fracture.

This code is appropriate for subsequent encounters where a patient with a displaced C1 fracture is experiencing delayed union, as documented by the treating physician. It should be used when the provider explicitly states "delayed healing" or "delayed union" in the context of a displaced C1 fracture. Documentation should include imaging reports confirming the fracture and evidence of ongoing treatment or monitoring for healing progression.

• Always confirm the displacement of the fracture and the specific cervical vertebra involved (C1).
• Ensure the documentation clearly states "delayed healing" or "delayed union" for this subsequent encounter.
• Distinguish from nonunion (S12.090K) or routine follow-up for a healing fracture (S12.090D).