Oth physl fx lower end rad, unsp arm, subs for fx w malunion

This code describes a fracture involving the growth plate (physis) at the distal end of the radius, where the bone has healed in an incorrect anatomical position (malunion). The specific arm affected is not documented, and this code is used for follow-up care after the initial treatment of the fracture.

This code is appropriate for subsequent encounters when a patient presents with a previously treated physeal fracture of the distal radius that has healed with malunion. This could include visits for ongoing management, assessment of function, or planning for corrective procedures related to the malunion. It should be used after the initial healing phase has concluded.

• Always confirm the encounter type is "subsequent" and that malunion is documented.
• Ensure the fracture location is specifically the lower end of the radius and involves the physis.
• If the laterality (left or right arm) is known, a more specific code should be selected.