Unsp fx upr end r tibia, subs for opn fx type I/2 w malunion

This code signifies a previously treated, unspecified fracture of the upper portion of the right tibia that was initially an open fracture of Gustilo type I or II. The current encounter addresses a complication where the bone has healed in an abnormal alignment, known as malunion.

Use this code for follow-up encounters where a patient with a history of an open type I or II upper right tibia fracture (whose specific fracture type was not documented) is being treated for malunion. This applies when the initial fracture treatment has concluded, and the focus is now on managing the malunion.

• Ensure documentation clearly states "malunion" and specifies the right tibia.
• Verify the original fracture was an open type I or II; if not, a different subsequent encounter code for malunion may be appropriate.
• This code is for an unspecified fracture type of the upper end of the tibia; if a more specific fracture type (e.g., plateau, tuberosity) is documented, a more precise code should be selected.