Unsp physeal fx lower end of l femur, subs for fx w malunion

This code indicates an unspecified growth plate fracture at the lower end of the left thigh bone that is currently healing incorrectly. Malunion signifies that the bone fragments have united in an abnormal position, potentially leading to functional impairment or deformity. This code is used for follow-up care after the initial treatment of the fracture.

Use this code for subsequent encounters when a patient is being treated for a malunited physeal fracture of the distal left femur. This applies when the fracture has previously been diagnosed and is now demonstrating signs of healing in an unsatisfactory alignment. It would be appropriate for ongoing management, evaluation of the malunion, or planning for corrective procedures.

• Ensure documentation clearly states "malunion" and specifies the left femur and lower end.
• Verify that this is a subsequent encounter, not the initial treatment of the fracture.
• If the specific type of physeal fracture (e.g., Salter-Harris type) is known, a more specific code should be used.