Type III traum spondylolysis of 7th cervcal vert, 7thK

This code signifies a chronic or persistent instability of the seventh cervical vertebra (C7) due to a traumatic spondylolisthesis, specifically a Type III (bilateral pedicle fracture) that has failed to heal properly. The "subsequent encounter" indicates ongoing treatment for the nonunion of this fracture, rather than initial care. This condition can lead to neurological deficits and chronic neck pain.

Use this code for patients presenting for follow-up care, cast changes, physical therapy, or surgical intervention related to a previously diagnosed Type III traumatic spondylolisthesis of C7 with confirmed nonunion. Documentation must clearly state the cervical level (C7), the type of spondylolisthesis (Type III), the traumatic etiology, and the nonunion status of the fracture.

• Ensure documentation specifies "nonunion" and not "malunion" or "delayed healing" for accurate code assignment.
• Verify the cervical level is C7; other cervical levels have distinct codes.
• This code requires an external cause code (V00-Y99) to describe the circumstances of the injury, if not already reported.