Unsp fracture of unsp patella, subs for clos fx w malunion

This code signifies a follow-up encounter for a patellar fracture where the specific location of the fracture on the kneecap is not documented, and the fracture has not broken through the skin. Crucially, it indicates that the bone fragments have healed in an incorrect or deformed position, leading to a malunion.

Use this code when a patient presents for ongoing management or evaluation of a previously sustained, unspecified closed patellar fracture that has healed with a malunion. This would include scenarios where the patient is experiencing symptoms related to the malunion, such as pain or functional limitations, or is being assessed for corrective procedures.

• Ensure documentation clearly states "malunion" and specifies a "subsequent encounter" for the fracture.
• Verify that the fracture is indeed "unspecified" as to its exact location on the patella.
• Do not use this code for initial treatment or for nonunion (failure to heal).