S42.423B
ICD-10-CMDisplaced comminuted supracondylar fracture without intercondylar fracture of unspecified humerus, initial encounter for open fracture
This code describes a severe fracture of the humerus, specifically above the elbow joint, where the bone is broken into multiple fragments and the pieces are out of alignment. It explicitly excludes any fractures extending between the condyles of the humerus. The fracture is open, meaning there is a break in the skin exposing the bone, and this is the patient's initial treatment for the injury.
Use this code for a patient presenting with a newly diagnosed, comminuted supracondylar fracture of the humerus that is displaced and open. This applies to the initial surgical repair or other definitive treatment of the open fracture. It is appropriate when the laterality (left or right arm) is not documented.
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