Oth fx shaft of l tibia, subs for opn fx type I/2 w nonunion

This code signifies a non-healing fracture in the main part of the left shin bone, specifically an open fracture (where the bone broke through the skin) that was initially classified as Type I or II. The patient is currently in a later stage of treatment for this persistent fracture.

Use this code when documenting a patient presenting with a previously treated open fracture of the left tibial shaft (Gustilo-Anderson Type I or II) that has failed to heal properly (nonunion). This applies to follow-up visits after the initial treatment, where the nonunion is being managed.

• Ensure documentation clearly specifies "nonunion" and the "subsequent encounter" for the fracture.
• Verify the original fracture was an open fracture of the tibial shaft, classified as Type I or II.
• Do not use for initial treatment or for malunion (improper healing in a deformed position).