Unsp 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 displaced, meaning the bone fragments are not in their normal alignment. The "unspecified" nature indicates that the specific type of fracture (e.g., Jefferson, anterior arch) is not documented. The "subsequent encounter with delayed healing" specifies that the patient is receiving follow-up care for a fracture that is not healing at the expected rate.

This code is appropriate for follow-up visits where a patient is being managed for a previously diagnosed, displaced, and unspecified C1 fracture that is exhibiting delayed union or nonunion. Documentation must clearly state the fracture is of the first cervical vertebra, is displaced, and that healing is delayed. Imaging reports or physician notes confirming delayed healing are essential.

• Ensure documentation specifies "displaced" and "delayed healing" for the C1 fracture.
• Do not use this code for initial encounters or for fractures that are healing normally.
• Always review the full documentation to determine if a more specific fracture type (e.g., S12.010G for a displaced Jefferson fracture of C1) can be coded.