Unsp fx fifth MC bone, right hand, subs for fx w malunion

This code signifies a follow-up encounter for a previously sustained, unconfirmed fracture of the fifth metacarpal bone in the right hand. At this subsequent visit, the fracture is noted to be healing improperly, resulting in a malunion. This indicates that the bone fragments have united in an anatomically incorrect position.

Use this code when a patient presents for ongoing care of a right fifth metacarpal fracture that was not specified as displaced or nondisplaced at the initial diagnosis, and imaging or clinical assessment now confirms malunion. This applies to situations where the initial fracture treatment has concluded, but the bone has healed incorrectly, requiring further management.

• Ensure documentation clearly states "right hand" and "fifth metacarpal" for specificity.
• Verify that the encounter is for follow-up care of a previously diagnosed fracture, not an initial injury.
• Confirm that the documentation explicitly mentions "malunion" to justify the 7th character "P".