Greenstick fracture of shaft of humerus, unsp arm, init

This code signifies a specific type of incomplete fracture, known as a greenstick fracture, affecting the shaft (diaphysis) of the humerus. This injury typically occurs in children, where one side of the bone breaks and the other side bends, similar to a young tree branch. The "unspecified arm" indicates that the laterality (left or right) of the injury is not documented.

Apply this code when documentation confirms a greenstick fracture of the humeral shaft in a pediatric patient, and the medical record does not specify which arm is affected. This code is appropriate for the initial treatment encounter of a closed fracture, meaning the skin over the fracture site remains intact.

• Ensure the documentation explicitly states "greenstick fracture" and "shaft of humerus."
• Verify that the encounter is for the initial treatment of the fracture and that it is a closed fracture.
• If laterality (left or right arm) is documented, a more specific code should be used.