Unsp fx shaft of right tibia, subs for clos fx w nonunion

This code indicates a fracture of the shaft of the right tibia where the specific type of fracture (e.g., transverse, oblique) is not documented. It signifies a subsequent encounter for a closed fracture that has failed to heal properly, resulting in nonunion.

This code is appropriate when a patient presents for ongoing management of a right tibial shaft fracture that was initially closed but has not united after the expected healing period. It is used for follow-up visits, cast changes, or surgical planning related to the nonunion of the previously treated fracture.

• Ensure documentation clearly states "right tibia shaft" and "nonunion" for a closed fracture.
• Verify that this is a subsequent encounter, not the initial treatment of the fracture.
• Always review the medical record for laterality and the specific bone involved.