Disp fx of distal phalanx of r thm, subs for fx w nonunion

This code signifies a fracture of the furthest bone in the right thumb that has shifted out of its normal alignment and has failed to heal properly. It indicates that the patient is receiving ongoing care for this ununited fracture, rather than initial treatment.

Apply this code when documenting follow-up care for a patient whose right thumb distal phalanx fracture, previously diagnosed as displaced, has not shown signs of healing and is considered a nonunion. This would be used for subsequent visits where treatment for the nonunion (e.g., bone grafting, revision surgery planning, or continued conservative management) is being provided.

• Ensure documentation clearly states "nonunion" and specifies the right thumb's distal phalanx.
• Verify that the encounter is for follow-up care of the nonunion, not the initial treatment of the fracture.
• Always code the associated external cause and place of occurrence codes if applicable for the original injury.