Unstbl burst fx third thor vertebra, subs for fx w nonunion

This code signifies an unstable burst fracture affecting the third thoracic vertebra, which has not healed properly (nonunion). An unstable burst fracture involves significant vertebral body damage, often with retropulsion of bone fragments into the spinal canal, and the nonunion indicates a failure of the bone to mend after a previous treatment attempt.

Apply this code when documenting follow-up care for a patient previously diagnosed with an unstable burst fracture of the T3 vertebra, where imaging or clinical assessment confirms that the fracture has not united. This is appropriate for subsequent encounters for ongoing management, evaluation of nonunion, or planning for further intervention.

• Ensure documentation clearly specifies "unstable burst fracture" and "nonunion" for the T3 vertebra.
• Verify this is a subsequent encounter, not the initial treatment for the fracture.
• Confirm the specific vertebral level (T3) is documented to avoid laterality or level-of-injury coding errors.