Unsp fx upr end r ulna, 7thN

This code indicates a fracture of the upper portion of the right ulna, where the specific type of fracture is not documented. It is used for an open fracture (meaning the skin was broken) that has developed a nonunion, specifically of Gustilo-Anderson type IIIA, IIIB, or IIIC, and the patient is receiving follow-up care for this complication.

This code is appropriate when a patient presents for ongoing treatment of a previously sustained, unspecified open fracture of the proximal right ulna that has failed to heal (nonunion). This includes situations where the patient is undergoing procedures like bone grafting, internal fixation revision, or other interventions to address the nonunion.

• Ensure documentation clearly states "nonunion" and specifies the Gustilo-Anderson open fracture type (IIIA, IIIB, or IIIC).
• Verify laterality (right ulna) and the specific location (upper end) are documented.
• Confirm this is a subsequent encounter, not the initial treatment for the fracture.