A MELD Exception Score is a modifier to the calculated MELD score. Some transplant candidates have a medical condition, such as cancer or rare forms of chronic liver disease, where MELD or PELD will not accurately predict their short-term transplant need. If so, they may qualify for an exception score — a separately assigned score to be used instead of their calculated MELD or PELD in matching the person for available organ offers. The goal of exception scores is to make access to transplant more equitable among patients with similar levels of medical urgency.
