Oth fx shaft of unsp tibia, 7thN

This code signifies a non-specific fracture of the tibial shaft that has failed to heal properly, resulting in a nonunion. The fracture was initially an open fracture of severe type (IIIA, IIIB, or IIIC), and the patient is now receiving follow-up care for this complication.

Apply this code when documenting a patient presenting for ongoing management of a nonunion following a previously sustained severe open fracture of the tibial shaft. This includes situations where surgical intervention for nonunion is being planned or has already occurred, and the patient is in the healing phase.

• Ensure documentation clearly specifies "nonunion" and the initial open fracture type (IIIA, IIIB, or IIIC).
• This code is for subsequent encounters, indicating ongoing care after the initial treatment of the fracture.
• Always code laterality if known; "unspecified" should only be used when laterality cannot be determined from the medical record.