Oth physl fx lower end unsp femur, subs for fx w delay heal

This code signifies a fracture of the growth plate (physis) at the distal end of the femur, which is not further specified as to laterality. The "subsequent encounter" indicates the patient is receiving follow-up care for a fracture that is healing slower than expected, specifically with delayed union.

Apply this code for patients presenting for ongoing management of a physeal femur fracture where the healing process has been identified as delayed. This would include follow-up appointments for cast changes, imaging to assess healing progress, or discussions regarding further interventions due to the delayed healing.

• Ensure documentation clearly states "delayed healing" or "delayed union" for this specific fracture.
• Confirm the fracture is of the physis at the lower end of the femur and not another part of the bone.
• Pair with an external cause code if the mechanism of injury is known and relevant to the encounter.