S82.851N
ICD-10-CMDisplaced trimalleolar fracture of right lower leg, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
This code describes a complex fracture involving all three malleoli (medial, lateral, and posterior) of the right lower leg, which is displaced and has failed to heal properly. The fracture is open, meaning the bone has broken through the skin, and is classified as a severe open fracture type IIIA, IIIB, or IIIC. This specific code indicates that the patient is in a subsequent phase of care for this non-healing injury.
Use this code when documenting ongoing treatment for a patient with a previously diagnosed and treated displaced trimalleolar fracture of the right lower leg that has not united. This applies to cases where the initial injury was an open fracture of a severe type (IIIA, IIIB, or IIIC) and the patient is now presenting for follow-up, further intervention, or management of the nonunion.
AI-generated reference — verify against official guidelines
+5 more in this category