Displ seg fx shaft of ulna, r arm, 7thM

This code signifies a specific type of fracture involving the shaft of the right ulna, where the bone is broken into segments and the pieces are no longer in their normal alignment. It indicates that the fracture is an open fracture (meaning the skin was broken) of either Type I or Type II severity, and that the bone is failing to heal properly after initial treatment.

This code is used when a patient presents for follow-up care of a previously treated open segmental fracture of the right ulnar shaft, and the physician documents nonunion. This would apply to situations where the patient is undergoing further interventions, such as bone grafting or revision surgery, due to the lack of healing.

• Ensure documentation clearly specifies "segmental fracture" and "nonunion" of the ulna shaft.
• Verify the laterality is "right arm" and the encounter is "subsequent" for an open fracture Type I or II.
• Do not use this code for initial encounters or for closed fractures.