Nondisp fx of triquetrum bone, r wrs, subs for fx w nonunion

This code signifies a fracture of the triquetrum bone in the right wrist that is not displaced, meaning the bone fragments are still in their normal alignment. The "subsequent encounter" indicates the patient is receiving follow-up care for this fracture, specifically because it has not healed properly (nonunion).

This code is used when a patient presents for ongoing treatment of a previously diagnosed, nondisplaced right triquetral fracture that has failed to unite. This could include evaluations for pain, limited range of motion, or imaging studies confirming the nonunion. It is appropriate for surgical interventions or conservative management aimed at promoting healing of the nonunion.

• Ensure documentation clearly specifies "right wrist" and "nondisplaced" for the triquetrum fracture.
• Verify that the encounter is for follow-up care of a nonunion of the fracture, not initial treatment or routine follow-up of a healing fracture.
• Always sequence this code after any associated external cause codes, if applicable.