Breakdown (mechanical) of int fix of bones, init

This code signifies a mechanical failure of an internal fixation device, such as a plate, screw, or rod, used to stabilize a bone other than a joint prosthesis. This breakdown is due to a structural issue with the device itself, not an infection or patient-related complication. It represents the initial presentation of this specific device failure.

Apply this code when a patient presents with symptoms directly attributable to the mechanical failure of an internal fixation device in a non-joint bone, such as a fractured shaft of a long bone or a facial bone. This includes instances where the device has bent, broken, or loosened, requiring intervention. Use this for the first encounter related to this particular complication.

• Ensure documentation clearly states "mechanical breakdown" of the internal fixation device.
• Verify the affected bone is not a joint prosthesis; if it is, a different T84 subcategory is needed.
• Confirm this is the initial encounter for this specific device complication; subsequent encounters will require a different seventh character.