Disp 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 has shifted out of its normal alignment. 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 typical healing period.

Apply this code when documenting ongoing treatment for a left fifth metacarpal base fracture that was initially displaced and has now been diagnosed with nonunion. This would include scenarios such as surgical intervention for nonunion, casting/splinting for nonunion, or evaluation of nonunion healing progress.

• Ensure documentation clearly states "left hand" and "fifth metacarpal base" to support laterality and specific bone.
• Verify that "displaced" and "nonunion" are explicitly documented by the provider.
• Confirm this is a subsequent encounter, not an initial treatment, and that the nonunion diagnosis is established.