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

This code signifies a specific type of ulna fracture where the bone is broken into multiple pieces (segmental) and the broken ends are not aligned (displaced). It specifically applies to an open fracture (bone protruding through the skin or a deep wound communicating with the fracture site) that is severe (Type IIIA, IIIB, or IIIC) and is being treated in a subsequent encounter due to delayed healing.

This code is appropriate for follow-up visits or hospitalizations where a patient with a previously diagnosed severe open segmental ulna shaft fracture (unspecified arm) is being managed for complications related to delayed bone healing. This would include scenarios where the fracture has not united within the expected timeframe, requiring further intervention or prolonged care.

• Ensure documentation clearly specifies "delayed healing" for an open fracture type IIIA, IIIB, or IIIC.
• Verify the fracture is segmental and displaced, and located in the shaft of the ulna.
• Confirm this is a subsequent encounter, not the initial treatment for the fracture.