Unsp fx upr end unsp ulna, 7thM

This code signifies a fracture of the upper portion of the ulna, where the specific location (e.g., olecranon, coronoid process) is not documented. It indicates a subsequent encounter for an open fracture, specifically Gustilo type I or II, that has failed to heal properly, resulting in a nonunion.

This code is appropriate when a patient presents for ongoing treatment of an unhealed open fracture of the proximal ulna, and the initial injury was classified as Gustilo type I or II. It should be used when the precise anatomical site of the fracture within the upper ulna is not specified in the medical record.

• Always verify the Gustilo classification (Type I or II) for open fractures in subsequent encounters.
• Ensure documentation explicitly states "nonunion" for this code to be accurate.
• If the specific site of the upper ulnar fracture is known (e.g., olecranon), a more specific code should be selected.