Disp fx of unsp tibial tuberosity, 7thK

This code indicates a displaced break in the tibial tuberosity, an area just below the kneecap on the shin bone, that occurred previously and is now being treated for a failure to heal properly. The fracture itself is not open to the external environment.

Apply this code when a patient presents for follow-up care of a previously diagnosed and treated displaced closed fracture of an unspecified tibial tuberosity, and the documentation clearly states that the bone is not uniting as expected (nonunion). This would be used for subsequent encounters after the initial treatment.

• Ensure documentation specifies "nonunion" and "subsequent encounter."
• Verify the fracture is explicitly described as "displaced" and "closed."
• This code does not specify laterality (left or right); use when laterality is not documented.