Oth fx upr end r rad, subs for opn fx type 3A/B/C w malunion

This code signifies a follow-up encounter for a patient who previously sustained an open fracture of the upper portion of their right radius, specifically a severe open fracture (Type IIIA, IIIB, or IIIC), and the fracture has healed in an unsatisfactory alignment (malunion). It indicates ongoing care for the complications arising from this improperly healed injury.

This code is appropriate for documenting subsequent visits where a patient is being managed for a malunion of a previously treated severe open fracture of the proximal right radius. This could include evaluations for pain, limited range of motion, or planning for corrective osteotomy or other surgical interventions to address the malunion. It is used after the initial healing phase has concluded with an undesirable outcome.

• Ensure documentation clearly specifies "malunion" and not "nonunion" or "delayed union."
• Verify the fracture was explicitly documented as an "open fracture type IIIA, IIIB, or IIIC" in the initial injury encounter.
• Confirm this is a "subsequent encounter" for ongoing management, not the initial treatment or a sequela code for long-term effects after active treatment has ceased.