Oth fx shaft of r ulna, 7thR

This code signifies a malunion of an open fracture of the shaft of the right ulna, specifically for Gustilo-Anderson type IIIA, IIIB, or IIIC fractures. A malunion indicates that the bone has healed in an anatomically incorrect position, potentially leading to functional impairment. This is a subsequent encounter code, meaning it's used after the initial treatment phase.

Use this code when a patient presents with a previously treated open fracture of the right ulnar shaft (Gustilo-Anderson type IIIA, IIIB, or IIIC) that has healed in a misaligned position. This would typically be documented by imaging studies confirming malunion and clinical assessment of the patient's ongoing symptoms or functional limitations related to the malunion. It's appropriate for follow-up visits where the malunion is the primary focus of care.

• Ensure the documentation clearly specifies "malunion" and not just "nonunion" or "delayed union."
• Verify the fracture type was originally documented as Gustilo-Anderson type IIIA, IIIB, or IIIC.
• Confirm this is a subsequent encounter for the malunion, not an initial treatment or a sequela code.