Unsp fx shaft of unsp tibia, 7thN

This code signifies a fracture of the main part of the tibia (shin bone) where the exact location or type of fracture within the shaft is not specified. It specifically applies when the patient is receiving follow-up care for a severe open fracture (types IIIA, IIIB, or IIIC) that has failed to heal properly, resulting in nonunion.

Utilize this code for patients presenting for ongoing treatment of a previously sustained, severe open tibial shaft fracture that has not united. This includes situations where surgical intervention or other treatments are being performed to address the nonunion. It is appropriate when the specific details of the original fracture site on the tibial shaft are not documented.

• Ensure documentation clearly states "nonunion" and specifies the encounter as "subsequent" for an open fracture type IIIA, IIIB, or IIIC.
• Only use this code when the exact location of the fracture on the tibial shaft is not specified in the medical record.
• Verify that the encounter is for the management of the nonunion, not the initial treatment of the fracture.