S82.046N
ICD-10-CMNondisplaced comminuted fracture of unspecified patella, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion
This code describes a comminuted fracture of the patella that is not displaced, meaning the bone fragments remain in their anatomical position. It specifically applies to an open fracture (where the bone breaks through the skin) of types IIIA, IIIB, or IIIC, which are severe open fractures with significant soft tissue damage. The "nonunion" aspect indicates that the fracture has failed to heal properly after a period of treatment.
Use this code for a patient presenting for follow-up care of a previously diagnosed nondisplaced comminuted open patellar fracture (types IIIA, IIIB, or IIIC) where the fracture has not united. This would typically be documented after surgical intervention or prolonged conservative management has failed to achieve bone healing. It signifies ongoing management of the nonunion complication.
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