Oth 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, specifically an "open" fracture where the skin was broken at the time of injury (Type I or II). The key aspect is that the bone has failed to heal properly after the initial treatment, a condition known as nonunion. This indicates ongoing management for a complicated healing process.

Use this code for follow-up encounters when a patient is receiving care for a previously sustained open fracture of the distal left tibia that has not united. This applies to situations where the patient is undergoing further treatment, such as surgical intervention or prolonged immobilization, due to the nonunion. It is appropriate for any encounter after the initial treatment of the fracture.

• Always ensure documentation clearly specifies "nonunion" and the "subsequent encounter" for accurate coding.
• Verify the fracture location is the lower end of the tibia and laterality is left.
• Confirm the original fracture was an open fracture, specifically Type I or II, as documented in the patient's history.