Disp fx of neck of metacarpal bone, subs for fx w nonunion

This code signifies a displaced fracture of the neck of a metacarpal bone, excluding the thumb, that has failed to heal properly after initial treatment. It indicates that the patient is presenting for ongoing management of this nonunion.

Use this code when a patient returns for follow-up care of a previously treated displaced metacarpal neck fracture (other than the thumb) that has been diagnosed with nonunion. This applies to situations where the fracture fragments are still separated and not progressing towards healing.

• Ensure documentation clearly specifies "nonunion" and "displaced" for the metacarpal neck fracture.
• Verify that the fracture is of an "other" metacarpal (i.e., not the thumb metacarpal).
• Confirm this is a "subsequent encounter" for the fracture, indicating ongoing care after initial treatment.