Displ commnt fx shaft of rad, unsp arm, 7thP

This code describes a fracture of the main part of the radius bone in the forearm, where the bone is broken into multiple fragments and the pieces are no longer in their normal alignment. The specific arm is not documented, and this code is used during a follow-up visit for a fracture that is healing incorrectly (malunion) and has not been surgically opened.

Use this code for subsequent encounters when a patient presents with a previously diagnosed comminuted, displaced radial shaft fracture that is now demonstrating malunion. This applies when the fracture was initially treated non-surgically or if the surgical site is not open. The documentation must explicitly state "unspecified arm."

• Ensure documentation specifies "unspecified arm" and "malunion" for accurate code assignment.
• Verify the encounter is "subsequent" and the fracture is "closed" (not open).
• Distinguish from nonunion (S52.353N) or routine healing (S52.353D).