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

This code signifies a specific type of ulna shaft fracture where the bone is broken into multiple pieces (segmental) and is out of alignment (displaced). The fracture is an open wound (Type I or II), and the bone has failed to heal properly (nonunion) after an initial treatment.

Use this code for a patient presenting for follow-up care of a previously treated open segmental ulna shaft fracture (Type I or II) that has not healed. This would apply to situations such as surgical intervention for the nonunion or ongoing management of the unhealed fracture.

• Ensure documentation clearly specifies "segmental" and "displaced" for the ulna shaft fracture.
• Verify the fracture was initially an "open fracture type I or II" and that the current encounter is for "nonunion."
• This code is for subsequent encounters; an initial encounter for this specific fracture would use a different code.