Sternal manubrial dissociation, subs for fx w nonunion

This code describes a persistent separation or dislocation of the manubrium from the body of the sternum, indicating a failure of the fracture to heal properly. This condition can lead to ongoing pain, instability, and functional limitations in the chest wall.

Use this code for patients who are receiving active treatment for a previously diagnosed sternal manubrial dissociation that has failed to unite. This includes follow-up visits for ongoing management, surgical intervention for nonunion, or evaluation of complications related to the unhealed fracture.

• Ensure documentation clearly states "nonunion" of the sternal manubrial dissociation.
• Verify the encounter is for subsequent care, not the initial injury.
• Always code any associated complications or sequelae of the nonunion.