Displ seg fx shaft of humer, r arm, subs for fx w malunion

This code signifies a right arm humerus fracture that involves a segment of the shaft, has shifted from its normal alignment, and is currently in a healing phase where the bone fragments have joined in an incorrect position. This malunion indicates a complication in the fracture's recovery process.

This code is appropriate for follow-up encounters where a patient is being treated for a previously diagnosed segmental shaft fracture of the right humerus that has healed, but with an unsatisfactory alignment. It would be used when assessing or managing the consequences of this malunion, such as pain, deformity, or functional limitations.

• Ensure documentation clearly specifies "malunion" for a segmental shaft fracture of the right humerus.
• Verify this is a subsequent encounter, not the initial treatment for the fracture.
• Confirm the laterality is "right arm" and the fracture type is "segmental" of the "shaft."