Nondisp fx of dist phalanx of r thm, subs for fx w nonunion

This code describes a fracture of the furthest bone in the right thumb that has not shifted out of alignment. The key aspect is that the fracture is failing to heal properly, indicating a nonunion, and the patient is presenting for follow-up care related to this ongoing issue.

This code is appropriate for encounters where a patient is receiving ongoing treatment or evaluation for a previously diagnosed nondisplaced distal phalanx fracture of the right thumb that has developed a nonunion. This includes visits for monitoring, conservative management of the nonunion, or preparation for surgical intervention to address the nonunion.

• Ensure documentation clearly specifies "right thumb" and "distal phalanx."
• Verify that the fracture is explicitly documented as "nondisplaced" and that "nonunion" is noted as the current healing status.
• Confirm the encounter type is "subsequent" for the fracture care, not initial or sequela.