Unstable burst fx T9-T10 vertebra, subs for fx w nonunion

This code signifies an unstable burst fracture affecting the T9-T10 vertebrae, where the initial treatment has failed to achieve bone healing. It indicates a persistent nonunion of the fracture during a follow-up visit. The instability implies potential for spinal cord compromise or further deformity.

Use this code for a patient presenting for ongoing management of a previously diagnosed T9-T10 burst fracture that has not healed. This applies to subsequent encounters where nonunion is confirmed, and the fracture remains unstable. This would typically be after initial surgical or non-surgical interventions have been attempted.

• Always sequence this code after the appropriate external cause code, if applicable.
• Ensure documentation clearly states "nonunion" and "unstable burst fracture" of T9-T10.
• Verify that the encounter is for follow-up care of the nonunion, not the initial treatment.