Nondisp fx of base of fifth metacarpal bone, left hand, 7thK

This code signifies a fracture at the base of the fifth metacarpal bone in the left hand that is not displaced. The "subsequent encounter" indicates the patient is receiving follow-up care for this fracture, and "nonunion" specifies that the bone fragments have failed to heal together after a reasonable period.

This code is appropriate for documenting ongoing treatment of a left fifth metacarpal base fracture where nonunion has been diagnosed. This includes scenarios such as cast changes, physical therapy, or surgical planning for a nonunion repair, after the initial treatment phase.

• Ensure documentation clearly states "nonunion" for the fracture.
• Verify the fracture is specifically of the base of the fifth metacarpal and on the left hand.
• Confirm this is a subsequent encounter, not the initial treatment for the fracture.