Monteggia's fx right ulna, subs for clos fx w nonunion

This code signifies a Monteggia's fracture affecting the right ulna, which is a specific type of fracture involving the proximal ulna with an associated dislocation of the radial head. The "subsequent encounter" indicates that the patient is receiving follow-up care for this injury, and "nonunion" specifies that the fracture fragments have failed to heal together after the expected healing period.

Use this code when documenting ongoing treatment for a right ulnar Monteggia's fracture that has not healed properly. This would include scenarios such as surgical intervention for nonunion, casting changes, or physical therapy appointments aimed at addressing the unhealed fracture. It is appropriate for any visit after the initial treatment where nonunion is a primary concern.

• Ensure documentation clearly states "nonunion" of the fracture.
• Verify the laterality is "right" and that it is indeed a Monteggia's fracture.
• Confirm this is a subsequent encounter, not the initial treatment for the fracture.