Oth fx upper end of r radius, subs for clos fx w nonunion

This code signifies a fracture located in the upper portion of the right radius bone, excluding common types like Monteggia or isolated head/neck fractures. Importantly, it indicates that the fracture has not healed properly (nonunion) and the patient is presenting for follow-up care after the initial treatment, with the skin remaining intact over the fracture site.

Apply this code when documenting a patient's subsequent visit for an unhealed closed fracture of the proximal right radius, where the specific fracture type is not further specified (e.g., not a radial head or neck fracture). This is appropriate for ongoing management of a nonunion, such as evaluation for bone grafting or revision surgery.

• Ensure documentation clearly states "nonunion" and "subsequent encounter" for a closed fracture.
• Verify the fracture location is specifically the "upper end" of the right radius and not a more precisely defined fracture (e.g., S52.12- for radial neck fracture).
• Do not use for initial treatment or for open fractures; different codes apply for those scenarios.