A pediatric patient was admitted with a pathologic fracture of the proximal right humerus. Radiographic evidence suggests that the fracture was caused by a unicameral bone cyst (solitary). An orthopedic consult was obtained to see whether this should be treated surgically. It was decided to treat conservatively and monitor healing with serial X-rays.Final Diagnosis: Unicameral bone cyst proximal right humerus with pathologic fracture

Question

Quizplus · Accepted Answer

The correct codes are M84.621A for the pathologic fracture of the proximal right humerus and M85.421 for the unicameral bone cyst in the right humerus. M84.621A specifically indicates a pathologic fracture, not elsewhere classified, of the right humerus, initial encounter for fracture, which is appropriate given the patient's first-time presentation for this issue. M85.421 is used for the bone cyst in the right humerus, which is the underlying cause of the fracture.

A Pediatric Patient Was Admitted with a Pathologic Fracture of the Proximal