Displ transverse fx shaft of l tibia, 7thM

This code describes a specific type of fracture involving the shaft of the left tibia, where the bone is broken completely across (transverse) and the fragments are not in their anatomical alignment (displaced). It further specifies that this is an open fracture of type I or II, meaning there is a wound communicating with the fracture site, and that the fracture has failed to heal properly after an initial treatment (nonunion).

This code is appropriate for follow-up encounters where a patient is being treated for a previously diagnosed displaced transverse fracture of the left tibial shaft that was initially an open fracture (Type I or II) and has now developed nonunion. This would include situations where surgical intervention for nonunion is being planned or performed, or during ongoing management of the nonunion.

• Ensure documentation clearly specifies "nonunion" for this specific fracture type and location.
• Verify the fracture was initially classified as an open fracture type I or II.
• Confirm this is a subsequent encounter, not the initial treatment of the acute fracture.