Oth fx shaft of right ulna, subs for clos fx w nonunion

This code signifies a non-union of a previously treated fracture in the shaft of the right ulna, where the bone ends have failed to heal together. The fracture is closed, meaning the skin over the injury remains intact. This encounter is for ongoing management of this persistent healing issue.

Apply this code when a patient presents for follow-up care, evaluation, or treatment of a right ulnar shaft fracture that has not healed after an initial period of treatment. This includes situations where surgical intervention for non-union (e.g., bone grafting, revision fixation) is being planned or performed, or during conservative management of a confirmed non-union.

• Ensure documentation clearly states "nonunion" and specifies the right ulna shaft.
• Verify the encounter is "subsequent" and not the initial treatment for the fracture.
• Confirm the fracture was "closed" at the time of the original injury.