Unsp fracture of right patella, subs for clos fx w nonunion

This code signifies a fracture of the right kneecap where the specific type of fracture (e.g., transverse, comminuted) is not documented. The injury is currently in a healing phase, but the bone fragments have failed to unite after a typical healing period, and the skin over the fracture remains intact.

Apply this code when a patient presents for follow-up care of a right patellar fracture that was initially treated conservatively or surgically, and imaging or clinical assessment confirms nonunion. This is appropriate for subsequent visits related to the ongoing management of the nonunion, such as cast changes, physical therapy, or preparation for revision surgery.

• Requires a seventh character of "K" for subsequent encounter with nonunion.
• Ensure documentation clearly states "nonunion" and specifies the right patella.
• Do not use for initial treatment or for malunion, which is a different complication.