Transplant Talk: The NEW Lung Composite Allocation Score
Continuous distribution will improve the organ matching process by considering all factors about each transplant candidate in a single score.
Source: OPTN
On March 9, 2023 a new continuous allocation score for lungs will be implemented. We held a Transplant Talk on March 2, 2023 with expert speakers from OPTN that discussed the new changes.
Here are a few key takeaways. You can also access a recording of the Transplant Talk above.
We realize this may cause a level of anxiety for those on the waitlist for lungs. While there are significant changes, the only thing you need to do at this time is to educate yourself on the new score.
If you have questions, talk to your transplant center at your next appointment.

HOW IT BENEFITS PATIENTS
- It’s a more fair and flexible system because multiple factors will be considered at the same time
- Equity is predicted to increase among potential recipients
- Patients can provide their feedback earlier in the policy development process
- It’s a single distribution framework that can be adapted to all organ types.

RESOURCES
- Patient FAQ: Lung allocation based on the Composite Allocation Score (CAS): Questions and answers for patients and caregivers
- Video: How is continuous distribution different from the current system?
optn.transplant.hrsa.gov - Video: How does the points-based allocation system work?optn.transplant.hrsa.gov
- How can your voice be heard in the future:
How to get involved – optn.transplant.hrsa.gov
QUESTIONS
If you have questions, reach out to the Patient Services department at (888) 894-6361 or patient.services@unos.org.
They have staff available to answer questions Monday-Friday, 8:30 am-5 pm ET.