Oth fx upr end unsp ulna, 7thM

This code signifies a non-healing fracture in the upper portion of the ulna, where the bone has not united after a previous injury. Specifically, it applies to an open fracture (Type I or II, indicating a relatively clean wound with minimal soft tissue damage) that is still undergoing treatment for nonunion.

This code is appropriate for follow-up encounters when a patient is receiving ongoing care for a previously diagnosed open fracture of the proximal ulna that has failed to heal. This includes situations where surgical intervention, casting, or other treatments are being provided to address the nonunion.

• Ensure documentation clearly specifies "nonunion" and the "subsequent encounter" for an open fracture type I or II.
• Verify the anatomical site is the "upper end of unspecified ulna" to differentiate from other ulnar fractures.
• Do not use for initial encounters or for fractures that have healed or are in routine follow-up without nonunion.