Oth physl fx lower end rad, left arm, subs for fx w nonunion

This code describes a fracture involving the growth plate (physis) at the lower end of the left radius, which is not healing properly. This specific code indicates that the patient is returning for follow-up care related to this unhealed fracture.

Use this code for a patient presenting for ongoing management of a left distal radial physeal fracture that has failed to unite. This would include scenarios such as follow-up appointments for casting changes, physical therapy, or surgical planning for nonunion.

• Ensure documentation clearly specifies "left arm" and "nonunion" for the physeal fracture.
• This code is for subsequent encounters; an initial encounter would use a different 7th character.
• Always code the specific type of physeal fracture if further detail is available (e.g., Salter-Harris type).