Oth fx lower end of unsp ulna, subs for clos fx w nonunion

This code indicates a fracture of the lower portion of the ulna that is not otherwise specified, meaning the specific type of fracture (e.g., transverse, oblique) is unknown. It signifies that the patient is in a later stage of treatment for a closed fracture where the bone fragments have failed to unite properly (nonunion).

Use this code when documenting follow-up care for a patient with a previously diagnosed closed fracture of the distal ulna that has not healed as expected. This typically applies when a physician is assessing the nonunion, planning further intervention, or managing complications related to the lack of bone healing.

• Ensure documentation clearly states "nonunion" for a closed fracture of the lower ulna.
• Verify that this is a subsequent encounter, not the initial treatment for the fracture.
• Confirm the specific location is the lower end of the ulna; if more specific details are available, a more precise code should be used.