Oth nondisp fx of 2nd cervcal vert, subs for fx w nonunion

This code signifies a fracture of the second cervical vertebra (axis) that is not displaced, meaning the bone fragments remain in their normal anatomical alignment. The "other" designation indicates it's not a hangman's fracture or a dens fracture. The "subsequent encounter with nonunion" specifies that the patient is receiving ongoing care for this fracture, and it has failed to heal properly.

Apply this code when a patient presents for follow-up treatment of a previously diagnosed, nondisplaced fracture of the C2 vertebra that has not united. Documentation should clearly state the C2 fracture, its nondisplaced nature, and the current status of nonunion, indicating the patient is still under active treatment for this specific complication.

• Ensure documentation explicitly states "nonunion" for the subsequent encounter. If the fracture is healing normally, a different subsequent encounter code would be appropriate.
• Verify the fracture location is specifically the second cervical vertebra (C2) and not another cervical level.
• Confirm the fracture is described as "nondisplaced" to differentiate from displaced fractures, which have separate codes.