Oth traum displ spondylolysis of 7th cervcal vert, 7thK

This code signifies a traumatic anterior slippage of the seventh cervical vertebra (C7) over the first thoracic vertebra (T1) due to a fracture, where the fracture has failed to heal properly. This specific code is used when the patient is receiving follow-up care for this nonunion.

Apply this code for patients presenting for ongoing treatment of a previously diagnosed traumatic C7 spondylolisthesis with documented nonunion of the associated fracture. This includes scenarios like follow-up appointments, physical therapy for the nonunion, or evaluation for further surgical intervention to address the unhealed fracture. Documentation must clearly state "nonunion" and "subsequent encounter."

• Ensure documentation specifies "displaced" and "traumatic" to differentiate from congenital or degenerative forms.
• Verify "nonunion" is explicitly stated for the fracture; otherwise, a different subsequent encounter code for routine healing may be appropriate.
• This code requires an external cause code (V00-Y99) to describe the circumstances of the injury.