Disp fx of shaft of 1st MC bone, r hand, 7thK

This code signifies a situation where the long, central part of the first metacarpal bone in the right hand has fractured, and the broken ends are not properly aligned. Despite previous treatment attempts, the fracture has failed to heal, indicating a nonunion.

This code is appropriate for follow-up encounters where a patient is being treated for a previously diagnosed displaced right first metacarpal shaft fracture that has not united. It is used when the focus of the visit is the ongoing management or assessment of this nonunion, such as for surgical planning or evaluation of healing progress.

• Ensure documentation clearly states "nonunion" and specifies the right first metacarpal shaft.
• Verify the fracture is displaced; otherwise, a different code for nondisplaced nonunion would be appropriate.
• This "K" seventh character indicates a subsequent encounter for a fracture with nonunion, not an initial treatment.