Unsp traum displ spondylolysis of 5th cervcal vert, 7thK

This code signifies a traumatic forward slippage of the fifth cervical vertebra (C5) over the vertebra below it, where the exact nature of the displacement is not specified. The fracture associated with this spondylolisthesis has failed to heal (nonunion), and the patient is presenting for follow-up care or treatment related to this ongoing nonunion.

Use this code for a patient encounter addressing the nonunion of an unspecified traumatic displaced spondylolisthesis of C5. Documentation should clearly indicate a prior traumatic injury leading to the spondylolisthesis, evidence of nonunion, and that this is a subsequent encounter for management of the fracture nonunion.

• Ensure documentation specifies "nonunion" and "subsequent encounter" for accurate code assignment.
• Distinguish from initial encounters or encounters for routine healing, which would use different seventh characters.
• Verify the specific cervical vertebra (C5) and the traumatic etiology are clearly documented.