Displ commnt fx shaft of humer, unsp arm, 7thP

This code describes a complex fracture of the humeral shaft that has not healed correctly, resulting in malunion. The fracture is comminuted (broken into multiple pieces) and displaced, indicating significant trauma and misalignment. The "subsequent encounter" designation means this code is used for ongoing care after the initial treatment of the fracture.

Use this code for patients presenting for follow-up care of a previously treated humeral shaft fracture that has healed in an anatomically incorrect position. This would include scenarios where the patient is undergoing evaluation for corrective surgery, physical therapy for functional limitations due to the malunion, or monitoring of the malunion's impact on arm function.

• Ensure documentation clearly states "malunion" and specifies the humeral shaft.
• Verify the fracture is indeed comminuted and displaced, as other fracture types have different codes.
• Confirm this is a subsequent encounter for the fracture, not an initial treatment or sequela.