For open treatment of two rib fractures with internal fixation on the right, what code should be reported?

The appropriate code for the open treatment of two rib fractures with internal fixation on the right side is 21811-RT. This code specifically covers the surgical procedure for the treatment of one to three rib fractures, and since there are two rib fractures involved in this scenario, this code correctly captures the complexity and nature of the treatment provided.

The addition of the -RT modifier indicates that the procedure was performed on the right side, providing clarity to the payer about the location of the surgery. This ensures accurate documentation and reimbursement for the services rendered.

In contrast, other codes within this range have different specifications regarding the number of ribs treated or types of procedures performed, making them unsuitable for this situation. Therefore, 21811-RT is the correct choice as it aligns precisely with the clinical scenario provided.