Type III traum spondylolysis of 2nd cervcal vert, 7thK

This code describes a specific type of traumatic fracture of the C2 vertebra, known as a Type III traumatic spondylolisthesis, which involves bilateral pedicle fractures with significant displacement. The "subsequent encounter" indicates the patient is receiving routine care during the healing phase of the nonunion, such as cast change or follow-up visits. "Nonunion" signifies that the fracture has failed to heal completely after an expected period.

Use this code for follow-up encounters where a patient is being managed for a previously diagnosed Type III traumatic spondylolisthesis of C2 that has developed a nonunion. Documentation should clearly state the diagnosis of Type III traumatic spondylolisthesis of C2, mention the nonunion, and indicate that the encounter is for ongoing care related to this specific fracture complication.

• Ensure documentation specifies "Type III" and "nonunion" for accurate code assignment.
• Distinguish between initial, subsequent, and sequela encounters based on the patient's treatment phase.
• Do not confuse with other types of C2 fractures or spondylolisthesis not specified as Type III traumatic.