Unsp fx low end l tibia, subs for opn fx type I/2 w nonunion

This code signifies a fracture of the lower portion of the left shin bone where the specific type of fracture is not documented. It indicates that the bone has not healed properly (nonunion) and the injury was an open fracture, meaning the skin was broken, classified as Type I or II. This code is used when the patient is receiving follow-up care for this ongoing healing complication.

This code is appropriate for subsequent encounters when a patient is being treated for a non-healing open fracture (Type I or II) of the distal left tibia, and the initial fracture type was not specified. This would include scenarios such as follow-up appointments for cast changes, wound care, or surgical intervention to address the nonunion. It should be used after the initial treatment of the acute fracture.

• Ensure documentation clearly states "nonunion" and "open fracture type I or II" for the left distal tibia.
• Verify that this is a subsequent encounter, not the initial treatment of the acute fracture.
• Confirm the laterality is "left" as specified by the code.