Displ Rolando's fracture, unsp hand, subs for fx w nonunion

This code signifies a specific type of fracture affecting the base of the thumb metacarpal, known as a Rolando's fracture, which is displaced. The injury involves the joint surface and is characterized by a Y or T-shaped intra-articular fracture pattern. The "unspecified hand" indicates that the laterality (left or right) is not documented.

This code is appropriate for encounters where a patient is receiving ongoing treatment for a previously diagnosed displaced Rolando's fracture of an unspecified hand, and the fracture has failed to heal properly, resulting in a nonunion. This would typically be used after the initial treatment phase, during follow-up visits for management of the nonunion.

• Ensure documentation clearly states "nonunion" in relation to the Rolando's fracture.
• Verify that the fracture is indeed displaced; if not, a different code for an undisplaced fracture would be more appropriate.
• If the laterality (left or right hand) is specified in the medical record, a more specific code should be chosen.