Unspecified disp fx of second cervical vertebra, sequela

This code describes the long-term effects or complications arising from a previously sustained, unspecified displaced fracture of the second cervical vertebra (C2). It indicates that the initial acute injury has healed, but residual issues related to that fracture persist.

Use this code when documenting a patient presenting with a current condition or symptom that is a direct consequence of a prior C2 fracture. Documentation should clearly link the current problem to the old fracture, often through terms like "due to old fracture," "post-traumatic," or "sequela of."

• This "S" (sequela) extension indicates a late effect. It should be used for conditions that are residual of an injury or illness that has already healed.
• Always sequence the sequela code first, followed by any additional codes to describe the specific nature of the sequela (e.g., chronic pain, malunion, nonunion).
• Ensure documentation explicitly states the link between the current condition and the prior C2 fracture; avoid using for acute or subacute fractures.