Oth fx upr end unsp rad, subs for opn fx type I/2 w malunion

This code signifies a subsequent encounter for an open fracture of the upper end of the radius (the bone on the thumb side of the forearm, near the elbow) that has developed malunion. The initial fracture was classified as an open fracture type I or II, meaning there was a break in the skin communicating with the fracture site, and the bone has healed in an incorrect anatomical position.

This code is appropriate when a patient presents for follow-up care, treatment, or evaluation of an open upper radial fracture (type I or II) that has healed improperly. This could include scenarios where surgical correction of the malunion is being planned, or the patient is experiencing ongoing symptoms related to the malaligned healing.

• Ensure documentation clearly states "subsequent encounter" and specifies malunion as the reason for the visit.
• Verify the original fracture was an open type I or II; if not, a different malunion code may be more appropriate.
• Always sequence this code after the primary diagnosis for the current encounter, if applicable.