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

This code describes a specific type of fracture involving the shaft of the ulna in the right arm, characterized by a spiral break that is no longer in its anatomical position. It indicates that the fracture was initially an open fracture (Type I or II) and has subsequently failed to heal properly, resulting in a nonunion.

This code is appropriate for follow-up encounters for a patient with a previously treated open spiral fracture of the right ulnar shaft that has not united. It should be used when the patient is receiving ongoing care for the nonunion, such as surgical intervention, cast changes, or monitoring.

• Ensure documentation specifies "right arm" and "ulna shaft" for accurate laterality and bone.
• Confirm the initial injury was an "open fracture type I or II" and that "nonunion" is explicitly documented.
• This code is for subsequent encounters; an initial encounter for this specific injury would use a different code.