Oth fx fifth MC bone, right hand, subs for fx w nonunion

This code signifies a fracture of the fifth metacarpal bone in the right hand, which is not a simple or comminuted fracture, and has failed to heal properly. The "nonunion" indicates that the bone fragments have not united after a sufficient healing period, requiring further intervention or management.

Apply this code when documenting a patient presenting for follow-up care of a previously diagnosed right fifth metacarpal fracture that has been confirmed as a nonunion. This would be used for subsequent visits related to the ongoing management of this specific complication, such as for casting, bracing, or surgical planning for nonunion repair.

• Ensure documentation clearly specifies "nonunion" and the right fifth metacarpal.
• Verify this is a subsequent encounter, not the initial treatment of the fracture.
• Confirm the fracture type is "other" and not specifically a simple or comminuted fracture.