S42.421K
ICD-10-CMDisplaced comminuted supracondylar fracture without intercondylar fracture of right humerus, subsequent encounter for fracture with nonunion
This code signifies a complex break in the upper arm bone (humerus) just above the elbow joint on the right side. The fracture is in multiple pieces (comminuted), has shifted out of alignment (displaced), and does not extend between the condyles. This specific code indicates that the patient is receiving care for this fracture, but it has failed to heal properly (nonunion).
Apply this code for follow-up encounters where a patient with a previously diagnosed displaced comminuted supracondylar fracture of the right humerus (without intercondylar involvement) is being treated for nonunion. This includes situations where surgical intervention or other treatments are being performed to address the non-healing fracture.
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