Disp fx of unsp tibial tuberosity, 7thM

This code describes a displaced fracture of an unspecified tibial tuberosity that has failed to heal (nonunion). It specifically applies to a subsequent encounter for an open fracture, classified as either type I or II. This indicates the fracture site was exposed to the external environment at the time of injury.

Use this code for patients presenting with a previously diagnosed open tibial tuberosity fracture (type I or II) that is now complicated by nonunion. This is appropriate for follow-up visits where the nonunion is being managed, rather than the initial injury. It signifies ongoing treatment for the unhealed fracture.

• Ensure documentation specifies "displaced" and "unspecified tibial tuberosity" for accurate code selection.
• Verify the encounter is "subsequent" and the original injury was an "open fracture type I or II."
• Confirm the presence of "nonunion" in the physician's notes to justify this specific complication.