Displ trimalleol fx unsp low leg, 7thR

This code signifies a complex ankle fracture involving all three malleoli (medial, lateral, and posterior) that is no longer in its proper anatomical alignment. It specifically indicates that the fracture was initially an open fracture with significant soft tissue damage (Type IIIA, IIIB, or IIIC) and has subsequently healed incorrectly, resulting in a malunion.

Apply this code when documenting follow-up care for a patient who previously sustained a severe open trimalleolar fracture and is now presenting with complications related to improper healing, such as persistent pain, deformity, or functional limitations due to the malunion. This code is appropriate for subsequent encounters after the initial treatment of the acute fracture.

• Ensure documentation clearly specifies "malunion" and the original "open fracture type IIIA, IIIB, or IIIC."
• Verify the laterality is "unspecified" if not documented as right or left.
• This code is for subsequent encounters, not the initial treatment of the acute fracture.