Unsp fx low end r ulna, subs for opn fx type I/2 w malunion

This code signifies a follow-up encounter for a right ulna fracture, specifically at its lower end, which was initially an open fracture (Type I or II) and has subsequently healed incorrectly, resulting in malunion. The exact nature of the fracture at the lower end of the ulna is not specified beyond its location.

This code is appropriate when a patient presents for ongoing management or evaluation of a previously sustained open fracture of the distal right ulna that has healed in a misaligned position. It indicates that the initial injury was an open fracture and the current issue is the resulting malunion.

• Ensure documentation clearly specifies "right ulna" and "lower end" for laterality and location.
• Verify that the original fracture was documented as an "open fracture type I or II" and that "malunion" is explicitly stated as the current complication.
• This code is for subsequent encounters; an initial encounter for the fracture would use a different code.