Unsp physl fx upr end rad, left arm, subs for fx w malunion

This code signifies a fracture of the growth plate (physis) at the upper end of the left radius, where the specific type of fracture is not documented. The fracture has healed incorrectly, resulting in a malunion, and the patient is presenting for follow-up care related to this complication.

This code is appropriate for subsequent encounters when a patient is being treated for a previously diagnosed, unspecified physeal fracture of the left radial head that has healed in a misaligned position. It should be used when the malunion is the primary focus of the current visit, such as for evaluation of range of motion limitations or pain due to the malunion.

• Ensure documentation clearly states "malunion" and specifies the left upper end of the radius.
• Verify that this is a subsequent encounter, not the initial treatment for the fracture.
• Do not use if the specific type of physeal fracture (e.g., Salter-Harris type) is known and documented.