Disp fx of pisiform, unsp wrist, subs for fx w nonunion

This code signifies a fracture of the pisiform bone in the wrist that has not healed properly (nonunion) and where the bone fragments are no longer in their normal anatomical alignment (displaced). It indicates that the patient is receiving ongoing care for this specific complication of the fracture.

Apply this code for follow-up encounters where a patient is being treated for a pisiform fracture that has failed to unite and remains displaced. This would include visits for monitoring, further imaging, or planning for interventions related to the nonunion and displacement after the initial treatment phase.

• Ensure documentation clearly states "nonunion" and "displaced" for the pisiform fracture.
• Verify the encounter is for subsequent care of the fracture complication, not initial treatment or routine follow-up of a healing fracture.
• Confirm the laterality (unspecified wrist) is appropriate if not specified in the medical record.