Oth fx low end unsp tibia, 7thR

This code signifies a subsequent encounter for an open fracture of the lower end of the tibia, specifically involving types IIIA, IIIB, or IIIC, where the bone has healed in a misaligned position. This indicates a complication of healing following a severe open tibial fracture near the ankle joint.

This code is appropriate when a patient presents for follow-up care or treatment of a malunion that developed after an initial open fracture of the distal tibia. It is used when the original injury was classified as an open fracture type IIIA, IIIB, or IIIC, indicating significant soft tissue damage and contamination.

• Ensure documentation clearly specifies "malunion" and the "subsequent encounter" for the fracture.
• Verify the original fracture was an open fracture of the lower end of the tibia, specifically type IIIA, IIIB, or IIIC.
• Do not use for initial encounters or for nonunion, which has a separate code.